[TIMOB-14090] fix issue where umlauts (ä,ö,ü etc.)

If the App-Name had umlauts (ä,ö,ü etc.) in it, it caused an error during the android build process, because the Android Manifest couldn't be generated from it's template.
These 2 lines fixed this issue and I had no problems building my app for Android.

Had no issues with this on iOS.