Add setting to ignore merge sets with only protected words

[imnasnainaec]

Protected data setting on QA:

Protected data settings with this PR:

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This change is 

[codecov]

Codecov Report

❌ Patch coverage is 46.66667% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 74.09%. Comparing base (6479723) to head (f1a01fd).

Files with missing lines	Patch %	Lines
...omponents/ProjectSettings/ProjectProtectedData.tsx	45.45%	6 Missing ⚠️
Backend/Helper/DuplicateFinder.cs	42.85%	2 Missing and 2 partials ⚠️
Backend/Controllers/MergeController.cs	0.00%	3 Missing ⚠️
Backend/Services/MergeService.cs	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3919      +/-   ##
==========================================
- Coverage   74.13%   74.09%   -0.05%     
==========================================
  Files         288      288              
  Lines       10614    10628      +14     
  Branches     1326     1328       +2     
==========================================
+ Hits         7869     7875       +6     
- Misses       2359     2365       +6     
- Partials      386      388       +2     

Flag	Coverage Δ
backend	85.33% <37.50%> (-0.09%)	⬇️
frontend	65.56% <57.14%> (-0.03%)	⬇️

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