Index: backend/package-lock.json
===================================================================
--- backend/package-lock.json	(revision 16237c49c48dec4a9921c2dd8bd19ccf9e9fb846)
+++ backend/package-lock.json	(revision 55ed1718e29f3bb840f3e7b798f4728e2b431499)
@@ -15,5 +15,6 @@
         "express-async-handler": "^1.2.0",
         "jsonwebtoken": "^8.5.1",
-        "mongoose": "^6.5.3"
+        "mongoose": "^6.5.3",
+        "multer": "^1.4.5-lts.1"
       },
       "devDependencies": {
@@ -70,4 +71,9 @@
         "node": ">= 8"
       }
+    },
+    "node_modules/append-field": {
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+      "resolved": "https://registry.npmjs.org/append-field/-/append-field-1.0.0.tgz",
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@@ -199,4 +205,20 @@
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+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
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+    },
+    "node_modules/busboy": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/busboy/-/busboy-1.6.0.tgz",
+      "integrity": "sha512-8SFQbg/0hQ9xy3UNTB0YEnsNBbWfhf7RtnzpL7TkBiTBRfrQ9Fxcnz7VJsleJpyp6rVLvXiuORqjlHi5q+PYuA==",
+      "dependencies": {
+        "streamsearch": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=10.16.0"
+      }
+    },
     "node_modules/bytes": {
       "version": "3.1.2",
@@ -252,4 +274,18 @@
       "dev": true
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+    "node_modules/concat-stream": {
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
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+      "engines": [
+        "node >= 0.8"
+      ],
+      "dependencies": {
+        "buffer-from": "^1.0.0",
+        "inherits": "^2.0.3",
+        "readable-stream": "^2.2.2",
+        "typedarray": "^0.0.6"
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@@ -283,4 +319,9 @@
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+    },
+    "node_modules/core-util-is": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
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@@ -636,4 +677,9 @@
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+      "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
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+    },
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@@ -790,4 +836,20 @@
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+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.6.tgz",
+      "integrity": "sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q=="
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+    "node_modules/mkdirp": {
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+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
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+      "dependencies": {
+        "minimist": "^1.2.6"
+      },
+      "bin": {
+        "mkdirp": "bin/cmd.js"
+      }
+    },
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@@ -886,4 +948,21 @@
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+    },
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+      "resolved": "https://registry.npmjs.org/multer/-/multer-1.4.5-lts.1.tgz",
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+      "dependencies": {
+        "append-field": "^1.0.0",
+        "busboy": "^1.0.0",
+        "concat-stream": "^1.5.2",
+        "mkdirp": "^0.5.4",
+        "object-assign": "^4.1.1",
+        "type-is": "^1.6.4",
+        "xtend": "^4.0.0"
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@@ -963,4 +1042,12 @@
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+      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
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+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
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@@ -1007,4 +1094,9 @@
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+    "node_modules/process-nextick-args": {
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+      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
+      "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag=="
+    },
     "node_modules/proxy-addr": {
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@@ -1068,4 +1160,23 @@
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+    "node_modules/readable-stream": {
+      "version": "2.3.7",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+      "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+      "dependencies": {
+        "core-util-is": "~1.0.0",
+        "inherits": "~2.0.3",
+        "isarray": "~1.0.0",
+        "process-nextick-args": "~2.0.0",
+        "safe-buffer": "~5.1.1",
+        "string_decoder": "~1.1.1",
+        "util-deprecate": "~1.0.1"
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+    "node_modules/readable-stream/node_modules/safe-buffer": {
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+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
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     "node_modules/readdirp": {
@@ -1250,4 +1361,25 @@
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+      "resolved": "https://registry.npmjs.org/streamsearch/-/streamsearch-1.1.0.tgz",
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+      "engines": {
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+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
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+      "dependencies": {
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+    "node_modules/string_decoder/node_modules/safe-buffer": {
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+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
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@@ -1316,4 +1448,9 @@
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+      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
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@@ -1331,4 +1468,9 @@
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+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
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+    },
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@@ -1365,4 +1507,12 @@
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+    "node_modules/xtend": {
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+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
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+      "engines": {
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@@ -1412,4 +1562,9 @@
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@@ -1536,4 +1704,15 @@
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+      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
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@@ -1817,4 +2001,9 @@
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@@ -1946,4 +2135,17 @@
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+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
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@@ -2022,4 +2224,18 @@
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+      "resolved": "https://registry.npmjs.org/multer/-/multer-1.4.5-lts.1.tgz",
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+        "busboy": "^1.0.0",
+        "concat-stream": "^1.5.2",
+        "mkdirp": "^0.5.4",
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@@ -2078,4 +2294,9 @@
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@@ -2107,4 +2328,9 @@
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@@ -2149,4 +2375,25 @@
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@@ -2287,4 +2534,24 @@
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@@ -2335,4 +2602,9 @@
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@@ -2347,4 +2619,9 @@
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     },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw=="
+    },
     "utils-merge": {
       "version": "1.0.1",
@@ -2370,4 +2647,9 @@
         "webidl-conversions": "^7.0.0"
       }
+    },
+    "xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
     }
   }
