print list values as comma separated string

[andy71]

This is my first pull request, so please be patient with me ;-)

I already opened the issue #119 and I hope I can contribute a little bit with this pull request.

[codecov]

Codecov Report

Merging #120 (0e80853) into main (de22f6b) will increase coverage by 0.45%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #120      +/-   ##
==========================================
+ Coverage   92.11%   92.57%   +0.45%     
==========================================
  Files          12       12              
  Lines         609      606       -3     
==========================================
  Hits          561      561              
+ Misses         48       45       -3     

Impacted Files	Coverage Δ
src/settings.py	84.07% <0.00%> (+2.17%)	⬆️

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