…canning features

- Added App.svelte as the main component for the application.
- Introduced types for Wi-Fi and Bluetooth entries, as well as log items in types.ts.
- Created utility functions for time formatting and channel frequency calculations in utils.ts.
- Updated layout to disable SSR and added a new page structure in +page.svelte.
- Removed unnecessary greeting functionality and replaced it with the main App component.
- Configured routing to ensure proper SPA behavior with Tauri.

- Added `nl80211.rs` for handling Wi-Fi scanning operations, including triggering scans and dumping results.
- Introduced new types and enums in `types.rs` for managing Wi-Fi-related data structures, including `WifiBssid`, `Security`, `CipherSuite`, and `AkmSuite`.
- Updated `handlers.rs` to utilize the new scanning functionality and fetch Wi-Fi interfaces.
- Modified `backend.rs` to resolve configuration dynamically and initiate Wi-Fi scans.
- Enhanced `NetworkVisualization.svelte` and `App.svelte` to accommodate new data structures and improve network visualization.
- Updated `types.ts` to reflect changes in the `WifiEntry` structure, including channel information and signal strength.