bug: splash screen stretched

[robingenz]

Describe the bug
The splash screen is stretched vertically.
OS: Android 10
Device: OnePlus 7T

[robingenz]

https://forum.ionicframework.com/t/splash-screen-is-stretched-in-some-devices/185430/8

[robingenz]

ToDo: https://github.com/robingenz/dhbw-dualis-app/pull/43/files

[robingenz]

Fix reverted (#88)