[stable31] Help modal improvements

[backportbot]

Backport of PR #6926

[codecov]

Codecov Report

Attention: Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 46.56%. Comparing base (201ffb9) to head (c7142c3).
Report is 20 commits behind head on stable31.

Files with missing lines	Patch %	Lines
src/components/HelpModal.vue	0.00%	2 Missing ⚠️
src/components/Suggestion/Mention/suggestions.js	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           stable31    #6932      +/-   ##
============================================
+ Coverage     46.53%   46.56%   +0.02%     
============================================
  Files           750      735      -15     
  Lines         34634    34617      -17     
  Branches       1269     1254      -15     
============================================
  Hits          16118    16118              
+ Misses        17894    17892       -2     
+ Partials        622      607      -15     

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