feat: migrate to vue 3 (#2689)

---------

Co-authored-by: Joep <jcbuhre@gmail.com>
Co-authored-by: Omar Hussein <omarmohammad1951@gmail.com>
Co-authored-by: Oleg Lobanov <oleg@lobanov.me>

frontend/src/i18n/nl-be.json

@@ -1,6 +1,7 @@
 {
   "buttons": {
     "cancel": "Annuleren",
+    "clear": "Wissen",
     "close": "Sluiten",
     "copy": "Kopiëren",
     "copyFile": "Bestand kopiëren",
@@ -46,7 +47,6 @@
   },
   "files": {
     "body": "Body",
-    "clear": "Wissen",
     "closePreview": "Voorvertoon sluiten",
     "files": "Bestanden",
     "folders": "Mappen",
@@ -79,27 +79,28 @@
   "languages": {
     "he": "עברית",
     "hu": "Magyar",
-    "ar": "Arabisch",
-    "de": "Duits",
-    "en": "Engels",
-    "es": "Spaans",
-    "fr": "Frans",
-    "is": "",
-    "it": "Italiaans",
-    "ja": "Japans",
-    "ko": "Koreaans",
-    "nlBE": "",
-    "pl": "Pools",
-    "pt": "Portugees",
-    "ptBR": "Portugees (Brazilië)",
-    "ro": "",
-    "ru": "Russisch",
+    "ar": "العربية",
+    "de": "Deutsch",
+    "el": "Ελληνικά",
+    "en": "English",
+    "es": "Español",
+    "fr": "Français",
+    "is": "Icelandic",
+    "it": "Italiano",
+    "ja": "日本語",
+    "ko": "한국어",
+    "nlBE": "Dutch (Belgium)",
+    "pl": "Polski",
+    "pt": "Português",
+    "ptBR": "Português (Brasil)",
+    "ro": "Romanian",
+    "ru": "Русский",
     "sk": "Slovenčina",
-    "svSE": "",
-    "tr" : "Türkçe",
-    "ua": "Українська",
-    "zhCN": "Chinees (vereenvoudigd)",
-    "zhTW": "Chinees (traditioneel)"
+    "svSE": "Swedish (Sweden)",
+    "tr": "Türkçe",
+    "uk": "Українська",
+    "zhCN": "中文 (简体)",
+    "zhTW": "中文 (繁體)"
   },
   "login": {
     "createAnAccount": "Account aanmaken",