Fix switchmode 15 publish old switch state

The forced MqttPublishSensor() was send an immediate SENSOR message with the switch's last_state.
So the last_state must be updated before the SENSOR message is sent.

tasmota/support_switch.ino

@@ -404,6 +404,7 @@ void SwitchHandler(uint32_t mode) {
           }
           break;
         case PUSH_IGNORE:
+          Switch.last_state[i] = button;                        // Update switch state before publishing
           MqttPublishSensor();
           break;
         }