fix(UI): ensure GTK calls are executed on the main thread to prevent segfaults

desktop/tauri/src-tauri/src/portmaster/commands.rs

@@ -91,7 +91,10 @@ pub fn get_app_info<R: Runtime>(
     }
     let cloned = id.clone();
 
-    std::thread::spawn(move || match crate::xdg::get_app_info(info) {
+    // GTK calls are not thread-safe and must run on the main thread. 
+    // Schedule the work on the GTK/GLib main thread to avoid random segfaults.
+    glib::idle_add_local(move || {
+        let _ = match crate::xdg::get_app_info(info.clone()) {
             Ok(info) => window.emit(&id, info),
             Err(err) => window.emit(
                 &id,
@@ -99,6 +102,8 @@ pub fn get_app_info<R: Runtime>(
                     error: err.to_string(),
                 },
             ),
+        };
+        glib::ControlFlow::Break
     });
 
     Ok(cloned)