Merge USB session safety and preserve GPS preference compatibility

examples/simple_sensor/SensorMesh.h

@@ -257,6 +257,7 @@ private:
     char interval_str[12];
     sprintf(interval_str, "%u", _prefs.gps_interval);
     sensors.setSettingValue("gps_interval", interval_str);
+    sensors.applyGpsTimeSyncInterval(_prefs.gps_sync_interval_hours);
   }
 #endif
 };