fix(android): allow file access for existing behavior

[erisu]

Motivation, Context & Description

Fixes SDK 30 related issues

Loading file:// resources is failing in SDK API 30 because the setAllowFileAccess is now defaulted to false.

To keep existing behavior, we should set this to true, but in future releases we should default it to false and have the files loaded not though file.

Testing

With the camera plugin, took a photo and loaded the FILE_URI in <img> tag.

Checklist

• I've run the tests to see all new and existing tests pass
• I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary

[codecov-io]

Codecov Report

Merging #1111 into master will decrease coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1111      +/-   ##
==========================================
- Coverage   70.06%   70.01%   -0.06%     
==========================================
  Files          20       20              
  Lines        1784     1784              
==========================================
- Hits         1250     1249       -1     
- Misses        534      535       +1     

Impacted Files	Coverage Δ
bin/templates/cordova/lib/check_reqs.js	58.49% <0.00%> (-0.48%)	⬇️

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[ath0mas]

As described in the upper Motivation, here is the Android point on setAllowFileAccess since SDK 30:

The default value is true for apps targeting Build.VERSION_CODES.Q and below, and false when targeting Build.VERSION_CODES.R and above.

This explicit call should be added next to the settings.setAllowUniversalAccessFromFileURLs(true); line?
as both are since API 30 related to deprecated file:// URLs, and suggested use of androidx.webkit.WebViewAssetLoader
(and maybe move this "group" a bit from the use of unrelated setMediaPlaybackRequiresUserGesture)