Implemented proper editors (#236)

Co-authored-by: widlam <mikolaj.widla@gmail.com>
Reviewed-on: #236
Reviewed-by: Adam Bem <bema@noreply.example.com>
Co-authored-by: Mikolaj Widla <widlam@noreply.example.com>
Co-committed-by: Mikolaj Widla <widlam@noreply.example.com>

Frontend/package.json

@@ -12,8 +12,13 @@
     "format": "prettier --write src/"
   },
   "dependencies": {
-    "hljs": "^6.2.3",
+    "@codemirror/lang-html": "^6.4.5",
+    "@codemirror/lang-json": "^6.0.1",
+    "@codemirror/lang-xml": "^6.0.2",
+    "@codemirror/theme-one-dark": "^6.1.2",
+    "codemirror": "^6.0.1",
     "vue": "^3.3.4",
+    "vue-codemirror": "^6.1.1",
     "vue-router": "^4.2.2"
   },
   "devDependencies": {