linux gui installer

[trappitsch]

• refractor bash script writing into installer_utils folder
• Fix packager for GUIs and add installer for GUIs on Linux
• update docs for linux gui installer

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.72%. Comparing base (fb45eb0) to head (f7bcb2d).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #41      +/-   ##
==========================================
+ Coverage   99.69%   99.72%   +0.02%     
==========================================
  Files          21       24       +3     
  Lines        1332     1431      +99     
==========================================
+ Hits         1328     1427      +99     
  Misses          4        4              

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