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

75% 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

@@ -200,7 +200,7 @@
     "instanceName": "Име на инстанцията",
     "language": "Език",
     "lockPassword": "Забрани на потребителя да променя паролата",
-    "newPassword": "Your new password",
+    "newPassword": "Вашата нова парола",
     "newPasswordConfirm": "Confirm your new password",
     "newUser": "New User",
     "password": "Password",