Add back the existing translation string

src/i18n/en.json

@@ -113,6 +113,7 @@
     "composing": "Composing",
     "confirm_new_password": "Confirm new password",
     "crop_your_new_avatar": "Crop your new avatar",
+    "current_avatar": "Your current avatar",
     "current_password": "Current password",
     "current_profile_banner": "Your current profile banner",
     "data_import_export_tab": "Data Import / Export",