refacto(gui): apply modernized code base to GUI launcher (which was broken)

[Guts]

No description provided.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 31 lines in your changes missing coverage. Please review.

Project coverage is 23.84%. Comparing base (e0c823c) to head (f2917a6).
Report is 1 commits behind head on master.

❗ Current head f2917a6 differs from pull request most recent head 03fb2c1

Please upload reports for the commit 03fb2c1 to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #300      +/-   ##
==========================================
+ Coverage   23.74%   23.84%   +0.10%     
==========================================
  Files          41       41              
  Lines        2826     2814      -12     
  Branches      393      391       -2     
==========================================
  Hits          671      671              
+ Misses       2108     2097      -11     
+ Partials       47       46       -1     

Flag	Coverage Δ
unittests	23.84% <0.00%> (+0.10%)	⬆️

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

Files	Coverage Δ
dicogis/georeaders/process_files.py	0.00% <0.00%> (ø)
dicogis/cli/cmd_inventory.py	0.00% <0.00%> (ø)
dicogis/ui/main_windows.py	0.00% <0.00%> (ø)
dicogis/export/base_serializer.py	0.00% <0.00%> (ø)

... and 1 file with indirect coverage changes