[UnitTests] Popup window not close after some time

[kwojtasinski-repo]

Closes/fixes #issue

Added unit tests to provide better code coverage

Checklist

• This PR makes changes to the public API
• I have included links for closing relevant issue numbers

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.11% 🎉

Comparison is base (9f6ec0d) 77.80% compared to head (1c4a2e4) 77.92%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1165      +/-   ##
==========================================
+ Coverage   77.80%   77.92%   +0.11%     
==========================================
  Files          45       45              
  Lines        1726     1726              
  Branches      346      346              
==========================================
+ Hits         1343     1345       +2     
+ Misses        343      342       -1     
+ Partials       40       39       -1     

Flag	Coverage Δ
unittests	77.92% <100.00%> (+0.11%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
src/navigators/PopupWindow.ts	90.62% <100.00%> (+6.25%)	⬆️

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[pamapa]

nice, thanks for contributing!