cosinuss° Lab App

* The app now shows the target firmware version before starting the firmware update
* Sensor erros are now displayed as hex values
* Internal changes and updates

Bugs fixed:
* The app did not continue a firmware update if the app was closed in the middle of the process
* On some phones it was not possible to select a known serial from the suggestion list
* The app occasionally read wrong battery values if the sensor was in Extended Data mode while connecting