do blocking add in worker thread

system/ui/lib/wifi_manager_v2.py

@@ -123,9 +123,13 @@ class WifiManager:
     self._networks_updated = networks_updated
     self._connection_failed = connection_failed
 
+  def __del__(self):
+    self.stop()
+
   def stop(self):
     self._running = False
     self._thread.join()
+    self._bus.close()
 
   def _run(self):
     while True:
@@ -189,6 +193,7 @@ class WifiManager:
     return wifi_device
 
   def connect_to_network(self, ssid: str, password: str | None):
+    def worker():
       t = time.monotonic()
 
       # Clear all connections that may already exist to the network we are connecting
@@ -233,6 +238,8 @@ class WifiManager:
 
       print(f'Connecting to network took {time.monotonic() - t}s')
 
+    threading.Thread(target=worker, daemon=True).start()
+
   def _get_connections(self) -> list[dbus.ObjectPath]:
     settings_iface = dbus.Interface(self._bus.get_object(NM, NM_SETTINGS_PATH), NM_SETTINGS_IFACE)
     return settings_iface.ListConnections()