i18n: add missing translation keys

locales/en/common.json

@@ -1080,7 +1080,14 @@
         "disabled": "Two-factor authentication disabled",
         "enable_error": "Failed to enable 2FA",
         "disable_error": "Failed to disable 2FA",
-        "setup_instructions": "Copy this URL into your authenticator app (Google Authenticator, Authy, etc.):"
+        "setup_instructions": "Copy this URL into your authenticator app (Google Authenticator, Authy, etc.):",
+        "verification_code": "Verification code",
+        "confirm": "Confirm",
+        "disable": "Disable",
+        "disable_confirm_prompt": "Enter your password to disable two-factor authentication.",
+        "password_required": "Password is required",
+        "code_required": "Verification code is required",
+        "code_invalid": "Invalid verification code. Check your authenticator app and try again."
       },
       "app_passwords": {
         "title": "App Passwords",
@@ -1088,11 +1095,14 @@
         "add": "Add",
         "create": "Create",
         "cancel": "Cancel",
+        "done": "Done",
         "generate": "Generate",
         "name_label": "App Name",
         "name_placeholder": "e.g. Thunderbird, iPhone Mail",
+        "expires_label": "Expires (optional)",
         "password_label": "Password (leave empty to auto-generate)",
         "password_placeholder": "Auto-generated if empty",
+        "copy_now_warning": "Copy this password now - it will not be shown again.",
         "added": "App password created",
         "removed": "App password removed",
         "add_error": "Failed to create app password",