WATranslate v4.5.1 — Desktop Language Under Menu

CHANGE
On desktop/web only, the language selector has been removed from the top header.

The three-dot (...) menu now contains:
- Settings
- Interface language
  - English
  - Русский
  - Deutsch
  - Español
- Log out

Selecting a language changes the UI immediately and closes the menu.

MOBILE
Unchanged.
The compact EN / RU / DE / ES switch stays visible in the mobile header.

NO BACKEND CHANGES
No changes to:
- public/api.php
- public/webhook.php
- config.php
- database
- branding storage
- Google
- Meta

FILES TO OVERWRITE
public/index.php
assets/app.js
public/assets/app.js
assets/ui-language-v4.4.css
public/assets/ui-language-v4.4.css
service-worker.js

INSTALL
1. Upload ZIP to:
   public_html/whatsapp-server-translator/
2. Extract and overwrite.
3. Desktop: hard refresh.
4. Mobile/PWA does not functionally change, but closing/reopening is safe.

NO SQL REQUIRED.
