Removed the "Send feedback" option from Help tab.

[MohitMaliFtechiz]

Fixes #4004

• Removed the "Send feedback" option from the Help tab.
• Removed all code related to this feature e.g. icons, strings, etc.
• Refactored the HelpFragmentTest.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 57.79%. Comparing base (1a0cb84) to head (6b12e44).
Report is 3 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #4013      +/-   ##
============================================
- Coverage     57.98%   57.79%   -0.20%     
+ Complexity     1595     1587       -8     
============================================
  Files           314      314              
  Lines         13051    13035      -16     
  Branches       1657     1656       -1     
============================================
- Hits           7568     7533      -35     
- Misses         4375     4395      +20     
+ Partials       1108     1107       -1     

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[kelson42]

@MohitMaliFtechiz CI still unstable!