Consider disconnected if wifi is disconnected

Trying to detect a disconnection earlier.

ESPHome/TX-Ultimate-Easy-ESPHome_core_hw_relays.yaml

@@ -191,7 +191,8 @@ script:
           }
 
           // Toggle relay if corresponding button action is enabled
-          const bool api_disconnected = not global_api_server->is_connected();
+          const bool api_disconnected = !global_api_server->is_connected() or
+                                        !global_wifi_component->is_connected();
           std::string select_state;
           bool toggle_relay = false;
           if (api_disconnected) {