feat: Init of Tauri application with system tray support and configuration

- Added main.rs to set up the Tauri application with a system tray.
- Implemented a basic application state management using Mutex.
- Created a system tray menu with options for "Settings" and "Quit".
- Configured tauri.conf.json with application metadata and window settings.

src-tauri/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+    tauri_build::build()
+}