Index: node_modules/immer/src/utils/common.ts
===================================================================
--- node_modules/immer/src/utils/common.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/immer/src/utils/common.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,240 @@
+import {
+	DRAFT_STATE,
+	DRAFTABLE,
+	Objectish,
+	Drafted,
+	AnyObject,
+	AnyMap,
+	AnySet,
+	ImmerState,
+	ArchType,
+	die,
+	StrictMode
+} from "../internal"
+
+export const getPrototypeOf = Object.getPrototypeOf
+
+/** Returns true if the given value is an Immer draft */
+/*#__PURE__*/
+export function isDraft(value: any): boolean {
+	return !!value && !!value[DRAFT_STATE]
+}
+
+/** Returns true if the given value can be drafted by Immer */
+/*#__PURE__*/
+export function isDraftable(value: any): boolean {
+	if (!value) return false
+	return (
+		isPlainObject(value) ||
+		Array.isArray(value) ||
+		!!value[DRAFTABLE] ||
+		!!value.constructor?.[DRAFTABLE] ||
+		isMap(value) ||
+		isSet(value)
+	)
+}
+
+const objectCtorString = Object.prototype.constructor.toString()
+const cachedCtorStrings = new WeakMap()
+/*#__PURE__*/
+export function isPlainObject(value: any): boolean {
+	if (!value || typeof value !== "object") return false
+	const proto = Object.getPrototypeOf(value)
+	if (proto === null || proto === Object.prototype) return true
+
+	const Ctor =
+		Object.hasOwnProperty.call(proto, "constructor") && proto.constructor
+	if (Ctor === Object) return true
+
+	if (typeof Ctor !== "function") return false
+
+	let ctorString = cachedCtorStrings.get(Ctor)
+	if (ctorString === undefined) {
+		ctorString = Function.toString.call(Ctor)
+		cachedCtorStrings.set(Ctor, ctorString)
+	}
+
+	return ctorString === objectCtorString
+}
+
+/** Get the underlying object that is represented by the given draft */
+/*#__PURE__*/
+export function original<T>(value: T): T | undefined
+export function original(value: Drafted<any>): any {
+	if (!isDraft(value)) die(15, value)
+	return value[DRAFT_STATE].base_
+}
+
+/**
+ * Each iterates a map, set or array.
+ * Or, if any other kind of object, all of its own properties.
+ *
+ * @param obj The object to iterate over
+ * @param iter The iterator function
+ * @param strict When true (default), includes symbols and non-enumerable properties.
+ *               When false, uses looseiteration over only enumerable string properties.
+ */
+export function each<T extends Objectish>(
+	obj: T,
+	iter: (key: string | number, value: any, source: T) => void,
+	strict?: boolean
+): void
+export function each(obj: any, iter: any, strict: boolean = true) {
+	if (getArchtype(obj) === ArchType.Object) {
+		// If strict, we do a full iteration including symbols and non-enumerable properties
+		// Otherwise, we only iterate enumerable string properties for performance
+		const keys = strict ? Reflect.ownKeys(obj) : Object.keys(obj)
+		keys.forEach(key => {
+			iter(key, obj[key], obj)
+		})
+	} else {
+		obj.forEach((entry: any, index: any) => iter(index, entry, obj))
+	}
+}
+
+/*#__PURE__*/
+export function getArchtype(thing: any): ArchType {
+	const state: undefined | ImmerState = thing[DRAFT_STATE]
+	return state
+		? state.type_
+		: Array.isArray(thing)
+		? ArchType.Array
+		: isMap(thing)
+		? ArchType.Map
+		: isSet(thing)
+		? ArchType.Set
+		: ArchType.Object
+}
+
+/*#__PURE__*/
+export function has(thing: any, prop: PropertyKey): boolean {
+	return getArchtype(thing) === ArchType.Map
+		? thing.has(prop)
+		: Object.prototype.hasOwnProperty.call(thing, prop)
+}
+
+/*#__PURE__*/
+export function get(thing: AnyMap | AnyObject, prop: PropertyKey): any {
+	// @ts-ignore
+	return getArchtype(thing) === ArchType.Map ? thing.get(prop) : thing[prop]
+}
+
+/*#__PURE__*/
+export function set(thing: any, propOrOldValue: PropertyKey, value: any) {
+	const t = getArchtype(thing)
+	if (t === ArchType.Map) thing.set(propOrOldValue, value)
+	else if (t === ArchType.Set) {
+		thing.add(value)
+	} else thing[propOrOldValue] = value
+}
+
+/*#__PURE__*/
+export function is(x: any, y: any): boolean {
+	// From: https://github.com/facebook/fbjs/blob/c69904a511b900266935168223063dd8772dfc40/packages/fbjs/src/core/shallowEqual.js
+	if (x === y) {
+		return x !== 0 || 1 / x === 1 / y
+	} else {
+		return x !== x && y !== y
+	}
+}
+
+/*#__PURE__*/
+export function isMap(target: any): target is AnyMap {
+	return target instanceof Map
+}
+
+/*#__PURE__*/
+export function isSet(target: any): target is AnySet {
+	return target instanceof Set
+}
+/*#__PURE__*/
+export function latest(state: ImmerState): any {
+	return state.copy_ || state.base_
+}
+
+/*#__PURE__*/
+export function shallowCopy(base: any, strict: StrictMode) {
+	if (isMap(base)) {
+		return new Map(base)
+	}
+	if (isSet(base)) {
+		return new Set(base)
+	}
+	if (Array.isArray(base)) return Array.prototype.slice.call(base)
+
+	const isPlain = isPlainObject(base)
+
+	if (strict === true || (strict === "class_only" && !isPlain)) {
+		// Perform a strict copy
+		const descriptors = Object.getOwnPropertyDescriptors(base)
+		delete descriptors[DRAFT_STATE as any]
+		let keys = Reflect.ownKeys(descriptors)
+		for (let i = 0; i < keys.length; i++) {
+			const key: any = keys[i]
+			const desc = descriptors[key]
+			if (desc.writable === false) {
+				desc.writable = true
+				desc.configurable = true
+			}
+			// like object.assign, we will read any _own_, get/set accessors. This helps in dealing
+			// with libraries that trap values, like mobx or vue
+			// unlike object.assign, non-enumerables will be copied as well
+			if (desc.get || desc.set)
+				descriptors[key] = {
+					configurable: true,
+					writable: true, // could live with !!desc.set as well here...
+					enumerable: desc.enumerable,
+					value: base[key]
+				}
+		}
+		return Object.create(getPrototypeOf(base), descriptors)
+	} else {
+		// perform a sloppy copy
+		const proto = getPrototypeOf(base)
+		if (proto !== null && isPlain) {
+			return {...base} // assumption: better inner class optimization than the assign below
+		}
+		const obj = Object.create(proto)
+		return Object.assign(obj, base)
+	}
+}
+
+/**
+ * Freezes draftable objects. Returns the original object.
+ * By default freezes shallowly, but if the second argument is `true` it will freeze recursively.
+ *
+ * @param obj
+ * @param deep
+ */
+export function freeze<T>(obj: T, deep?: boolean): T
+export function freeze<T>(obj: any, deep: boolean = false): T {
+	if (isFrozen(obj) || isDraft(obj) || !isDraftable(obj)) return obj
+	if (getArchtype(obj) > 1 /* Map or Set */) {
+		Object.defineProperties(obj, {
+			set: dontMutateMethodOverride,
+			add: dontMutateMethodOverride,
+			clear: dontMutateMethodOverride,
+			delete: dontMutateMethodOverride
+		})
+	}
+	Object.freeze(obj)
+	if (deep)
+		// See #590, don't recurse into non-enumerable / Symbol properties when freezing
+		// So use Object.values (only string-like, enumerables) instead of each()
+		Object.values(obj).forEach(value => freeze(value, true))
+	return obj
+}
+
+function dontMutateFrozenCollections() {
+	die(2)
+}
+
+const dontMutateMethodOverride = {
+	value: dontMutateFrozenCollections
+}
+
+export function isFrozen(obj: any): boolean {
+	// Fast path: primitives and null/undefined are always "frozen"
+	if (obj === null || typeof obj !== "object") return true
+	return Object.isFrozen(obj)
+}
Index: node_modules/immer/src/utils/env.ts
===================================================================
--- node_modules/immer/src/utils/env.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/immer/src/utils/env.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,18 @@
+// Should be no imports here!
+
+/**
+ * The sentinel value returned by producers to replace the draft with undefined.
+ */
+export const NOTHING: unique symbol = Symbol.for("immer-nothing")
+
+/**
+ * To let Immer treat your class instances as plain immutable objects
+ * (albeit with a custom prototype), you must define either an instance property
+ * or a static property on each of your custom classes.
+ *
+ * Otherwise, your class instance will never be drafted, which means it won't be
+ * safe to mutate in a produce callback.
+ */
+export const DRAFTABLE: unique symbol = Symbol.for("immer-draftable")
+
+export const DRAFT_STATE: unique symbol = Symbol.for("immer-state")
Index: node_modules/immer/src/utils/errors.ts
===================================================================
--- node_modules/immer/src/utils/errors.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/immer/src/utils/errors.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,48 @@
+export const errors =
+	process.env.NODE_ENV !== "production"
+		? [
+				// All error codes, starting by 0:
+				function(plugin: string) {
+					return `The plugin for '${plugin}' has not been loaded into Immer. To enable the plugin, import and call \`enable${plugin}()\` when initializing your application.`
+				},
+				function(thing: string) {
+					return `produce can only be called on things that are draftable: plain objects, arrays, Map, Set or classes that are marked with '[immerable]: true'. Got '${thing}'`
+				},
+				"This object has been frozen and should not be mutated",
+				function(data: any) {
+					return (
+						"Cannot use a proxy that has been revoked. Did you pass an object from inside an immer function to an async process? " +
+						data
+					)
+				},
+				"An immer producer returned a new value *and* modified its draft. Either return a new value *or* modify the draft.",
+				"Immer forbids circular references",
+				"The first or second argument to `produce` must be a function",
+				"The third argument to `produce` must be a function or undefined",
+				"First argument to `createDraft` must be a plain object, an array, or an immerable object",
+				"First argument to `finishDraft` must be a draft returned by `createDraft`",
+				function(thing: string) {
+					return `'current' expects a draft, got: ${thing}`
+				},
+				"Object.defineProperty() cannot be used on an Immer draft",
+				"Object.setPrototypeOf() cannot be used on an Immer draft",
+				"Immer only supports deleting array indices",
+				"Immer only supports setting array indices and the 'length' property",
+				function(thing: string) {
+					return `'original' expects a draft, got: ${thing}`
+				}
+				// Note: if more errors are added, the errorOffset in Patches.ts should be increased
+				// See Patches.ts for additional errors
+		  ]
+		: []
+
+export function die(error: number, ...args: any[]): never {
+	if (process.env.NODE_ENV !== "production") {
+		const e = errors[error]
+		const msg = typeof e === "function" ? e.apply(null, args as any) : e
+		throw new Error(`[Immer] ${msg}`)
+	}
+	throw new Error(
+		`[Immer] minified error nr: ${error}. Full error at: https://bit.ly/3cXEKWf`
+	)
+}
Index: node_modules/immer/src/utils/plugins.ts
===================================================================
--- node_modules/immer/src/utils/plugins.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/immer/src/utils/plugins.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,76 @@
+import {
+	ImmerState,
+	Patch,
+	Drafted,
+	ImmerBaseState,
+	AnyMap,
+	AnySet,
+	ArchType,
+	die
+} from "../internal"
+
+/** Plugin utilities */
+const plugins: {
+	Patches?: {
+		generatePatches_(
+			state: ImmerState,
+			basePath: PatchPath,
+			patches: Patch[],
+			inversePatches: Patch[]
+		): void
+		generateReplacementPatches_(
+			base: any,
+			replacement: any,
+			patches: Patch[],
+			inversePatches: Patch[]
+		): void
+		applyPatches_<T>(draft: T, patches: readonly Patch[]): T
+	}
+	MapSet?: {
+		proxyMap_<T extends AnyMap>(target: T, parent?: ImmerState): T
+		proxySet_<T extends AnySet>(target: T, parent?: ImmerState): T
+	}
+} = {}
+
+type Plugins = typeof plugins
+
+export function getPlugin<K extends keyof Plugins>(
+	pluginKey: K
+): Exclude<Plugins[K], undefined> {
+	const plugin = plugins[pluginKey]
+	if (!plugin) {
+		die(0, pluginKey)
+	}
+	// @ts-ignore
+	return plugin
+}
+
+export function loadPlugin<K extends keyof Plugins>(
+	pluginKey: K,
+	implementation: Plugins[K]
+): void {
+	if (!plugins[pluginKey]) plugins[pluginKey] = implementation
+}
+/** Map / Set plugin */
+
+export interface MapState extends ImmerBaseState {
+	type_: ArchType.Map
+	copy_: AnyMap | undefined
+	assigned_: Map<any, boolean> | undefined
+	base_: AnyMap
+	revoked_: boolean
+	draft_: Drafted<AnyMap, MapState>
+}
+
+export interface SetState extends ImmerBaseState {
+	type_: ArchType.Set
+	copy_: AnySet | undefined
+	base_: AnySet
+	drafts_: Map<any, Drafted> // maps the original value to the draft value in the new set
+	revoked_: boolean
+	draft_: Drafted<AnySet, SetState>
+}
+
+/** Patches plugin */
+
+export type PatchPath = (string | number)[]