Revert "fix: eliminate blocking calls causing startup freezes and UI hangs"

This reverts commit b2a1046f9d.

portprotonqt/app.py

@@ -39,19 +39,7 @@ def main():
     if start_sh is None:
         return
 
-    # Run the initial command asynchronously to avoid blocking startup
-    import threading
-    def run_initial_command():
-        try:
-            subprocess.run(start_sh + ["cli", "--initial"], timeout=10)  # Add timeout to prevent hanging
-        except subprocess.TimeoutExpired:
-            logger.warning("Initial command timed out after 10 seconds")
-        except Exception as e:
-            logger.warning(f"Initial command failed: {e}")
-
-    # Start the initial command in a background thread to not block UI startup
-    initial_thread = threading.Thread(target=run_initial_command, daemon=True)
-    initial_thread.start()
+    subprocess.run(start_sh + ["cli", "--initial"])
 
     app = QApplication(sys.argv)
     app.setWindowIcon(QIcon.fromTheme(__app_id__))