Index: frontend/node_modules/char-regex/index.js
===================================================================
--- frontend/node_modules/char-regex/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/char-regex/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,39 @@
+"use strict"
+
+// Based on: https://github.com/lodash/lodash/blob/6018350ac10d5ce6a5b7db625140b82aeab804df/.internal/unicodeSize.js
+
+module.exports = () => {
+	// Used to compose unicode character classes.
+	const astralRange = "\\ud800-\\udfff"
+	const comboMarksRange = "\\u0300-\\u036f"
+	const comboHalfMarksRange = "\\ufe20-\\ufe2f"
+	const comboSymbolsRange = "\\u20d0-\\u20ff"
+	const comboMarksExtendedRange = "\\u1ab0-\\u1aff"
+	const comboMarksSupplementRange = "\\u1dc0-\\u1dff"
+	const comboRange = comboMarksRange + comboHalfMarksRange + comboSymbolsRange + comboMarksExtendedRange + comboMarksSupplementRange
+	const varRange = "\\ufe0e\\ufe0f"
+	const familyRange = "\\uD83D\\uDC69\\uD83C\\uDFFB\\u200D\\uD83C\\uDF93"
+
+	// Used to compose unicode capture groups.
+	const astral = `[${astralRange}]`
+	const combo = `[${comboRange}]`
+	const fitz = "\\ud83c[\\udffb-\\udfff]"
+	const modifier = `(?:${combo}|${fitz})`
+	const nonAstral = `[^${astralRange}]`
+	const regional = "(?:\\uD83C[\\uDDE6-\\uDDFF]){2}"
+	const surrogatePair = "[\\ud800-\\udbff][\\udc00-\\udfff]"
+	const zwj = "\\u200d"
+	const blackFlag = "(?:\\ud83c\\udff4\\udb40\\udc67\\udb40\\udc62\\udb40(?:\\udc65|\\udc73|\\udc77)\\udb40(?:\\udc6e|\\udc63|\\udc6c)\\udb40(?:\\udc67|\\udc74|\\udc73)\\udb40\\udc7f)"
+	const family = `[${familyRange}]`
+
+	// Used to compose unicode regexes.
+	const optModifier = `${modifier}?`
+	const optVar = `[${varRange}]?`
+	const optJoin = `(?:${zwj}(?:${[nonAstral, regional, surrogatePair].join("|")})${optVar + optModifier})*`
+	const seq = optVar + optModifier + optJoin
+	const nonAstralCombo = `${nonAstral}${combo}?`
+	const symbol = `(?:${[nonAstralCombo, combo, regional, surrogatePair, astral, family].join("|")})`
+
+	// Used to match [String symbols](https://mathiasbynens.be/notes/javascript-unicode).
+	return new RegExp(`${blackFlag}|${fitz}(?=${fitz})|${symbol + seq}`, "g")
+}