Support Additional Languages Beyond Spanish & Chinese

Currently, localization is limited to English, Spanish, and Chinese via Localize‑Swift. Expanding to include other languages (e.g., French, German) would make the app more accessible to international visitors.
Sample:
```swift
// Example: adding French localization
Localize.update(provider: .mainBundle)
let _ = "welcome_message".localized(bundle: .main, tableName: "fr")
```