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

81% of minimum 50% translated source file: 'frontend/src/i18n/en.json'
on 'bg'.

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

frontend/src/i18n/bg.json

@@ -215,7 +215,7 @@
       "rename": "Преименувай или премести файлове и директорий",
       "share": "Сподели файлове"
     },
-    "permissions": "Permissions",
+    "permissions": "Разрешения",
     "permissionsHelp": "You can set the user to be an administrator or choose the permissions individually. If you select \"Administrator\", all of the other options will be automatically checked. The management of users remains a privilege of an administrator.\n",
     "profileSettings": "Profile Settings",
     "ruleExample1": "prevents the access to any dotfile (such as .git, .gitignore) in every folder.\n",