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

76% 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

@@ -201,8 +201,8 @@
     "language": "Език",
     "lockPassword": "Забрани на потребителя да променя паролата",
     "newPassword": "Вашата нова парола",
-    "newPasswordConfirm": "Confirm your new password",
-    "newUser": "New User",
+    "newPasswordConfirm": "Потвърди вашата нова парола",
+    "newUser": "Нов потребител",
     "password": "Password",
     "passwordUpdated": "Password updated!",
     "path": "Path",