Update server URL handling and improve logging

- Changed the server URL from 'http://localhost:8000' to 'http://127.0.0.1:17493' in the server store and connection form.
- Enhanced server startup logging to display the dynamically assigned server URL.
- Updated server management logic in main.rs to reflect the new port configuration and improve orphaned process handling.

tauri/src-tauri/tauri.conf.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
-  "productName": "voicebox",
+  "productName": "Voicebox",
   "version": "0.1.0",
   "identifier": "sh.voicebox.app",
   "build": {