feat: Translate frontend/src/i18n/en.json in sv_SE

91% of minimum 50% translated source file: 'frontend/src/i18n/en.json'
on 'sv_SE'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

frontend/src/i18n/sv-se.json

@@ -145,7 +145,7 @@
     "uploadMessage": "Välj ett alternativ att ladda upp.",
     "optionalPassword": "Valfritt lösenord",
     "resolution": "Upplösning",
-    "discardEditorChanges": "Are you sure you wish to discard the changes you've made?"
+    "discardEditorChanges": "Är du säker på att du vill förkasta ändringarna du gjort?"
   },
   "search": {
     "images": "Bilder",