feat: UTC-418: Define and enforce 'unskippable' tasks for annotator evaluation

[nass600]

Added the ability to import unskippable tasks via json. When a task is not allowed to be skipped it won't be allowed to postpone either

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[codecov]

Codecov Report

❌ Patch coverage is 91.89189% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 66.48%. Comparing base (43e7124) to head (571753d).
⚠️ Report is 2 commits behind head on develop.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
web/libs/editor/src/stores/AppStore.js	0.00%	5 Missing ⚠️
web/libs/editor/src/components/TopBar/Controls.jsx	80.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8907      +/-   ##
===========================================
+ Coverage    65.09%   66.48%   +1.38%     
===========================================
  Files          828      828              
  Lines        64773    64864      +91     
  Branches     11041    11059      +18     
===========================================
+ Hits         42164    43124     +960     
+ Misses       22605    21736     -869     
  Partials         4        4              

Flag	Coverage Δ
lsf-e2e	51.79% <19.04%> (+5.37%)	⬆️
lsf-integration	48.53% <57.14%> (+<0.01%)	⬆️
lsf-unit	8.56% <86.66%> (+0.22%)	⬆️
pytests	81.31% <100.00%> (+<0.01%)	⬆️

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