feat: enhance capabilities and permissions for dialog and process management

- Updated capabilities.json to include new permissions for dialog and process features.
- Expanded desktop-schema.json and windows-schema.json with detailed dialog and process permissions, including allow/deny options for various commands.
- Integrated dialog and process plugins in lib.rs to enable new functionalities in the application.

src-tauri/capabilities/default.json

@@ -10,6 +10,9 @@
     "opener:allow-open-url",
     "opener:allow-default-urls",
     "notification:default",
-    "autostart:default"
+    "autostart:default",
+    "updater:default",
+    "dialog:default",
+    "process:allow-restart"
   ]
 }