Complete Phase 4: Comprehensive preferences, localization, and UX polish

- Rename application from MenuWhisper to Tell me with new domain com.fmartingr.tellme
- Implement comprehensive preferences window with 6 tabs (General, Models, Text Insertion, Interface, Advanced, Permissions)
- Add full English/Spanish localization for all UI elements
- Create functional onboarding flow with model download capability
- Implement preview dialog for transcription editing
- Add settings export/import functionality
- Fix HUD content display issues and add comprehensive permission checking
- Enhance build scripts and app bundle creation for proper localization support

Docs/ARCHITECTURE.md

@@ -71,7 +71,7 @@ Menu-Whisper follows a modular architecture with clear separation of concerns be
 - Curated model catalog (JSON-based)
 - Download management with progress tracking
 - SHA256 verification and integrity checks
-- Local storage in `~/Library/Application Support/MenuWhisper/Models`
+- Local storage in `~/Library/Application Support/TellMe/Models`
 - Model selection and metadata management
 
 #### Core/Injection
@@ -185,7 +185,7 @@ The application follows a finite state machine pattern:
 The project uses Swift Package Manager with modular targets:
 
 ```
-MenuWhisper/
+TellMe/
 ├── Package.swift                    # SPM configuration
 ├── Sources/
 │   ├── App/                        # Main application target