Don't require full screen on iOS

[Cyberbeni]

fixes #426 fixes #376

couldn't test it because the Expo Go app already supports split screen and couldn't figure out how to build the standalone app

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 60.21%. Comparing base (af44e42) to head (f206aa5). Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #430 +/- ## ======================================= Coverage 60.21% 60.21% ======================================= Files 46 46 Lines 945 945 Branches 189 189 ======================================= Hits 569 569 Misses 341 341 Partials 35 35 ```

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[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud