feat(inbox): Only render modified stacks in the diff output comment

[m-szaf]

Per https://click-up.slack.com/archives/C03F94339PV/p1677168867609029

• Only rendering the modified stacks to clean up the uber output (See snapshot for the difference!)
• ALSO use regex backtracking to ensure that SSM changes don't get filtered out erroneously

[codecov]

Codecov Report

Merging #7 (ed38519) into main (09a2068) will increase coverage by 0.83%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #7      +/-   ##
==========================================
+ Coverage   71.71%   72.54%   +0.83%     
==========================================
  Files           3        3              
  Lines          99      102       +3     
  Branches       15       16       +1     
==========================================
+ Hits           71       74       +3     
  Misses         26       26              
  Partials        2        2              

Impacted Files	Coverage Δ
src/parsingLogic.ts	96.10% <100.00%> (+0.15%)	⬆️

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