Fix white screen when the content process terminates

[thornbill]

Forces the webview to reload when the content process terminates.

This fix comes directly from the react native webview readme: https://github.com/react-native-webview/react-native-webview/blob/1d8205af06dbb0bad0d8f208bb2a37ce5f732fd3/docs/Reference.md#oncontentprocessdidterminate

Fixes #396

[sonarqubecloud]

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 SonarQube Cloud

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 59.97%. Comparing base (7a3a7d0) to head (36d02de).
Report is 21 commits behind head on master.

Files with missing lines	Patch %	Lines
screens/HomeScreen.js	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #579      +/-   ##
==========================================
- Coverage   60.10%   59.97%   -0.13%     
==========================================
  Files          47       47              
  Lines         945      947       +2     
  Branches      187      187              
==========================================
  Hits          568      568              
- Misses        342      344       +2     
  Partials       35       35              

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