FI-2685: Allow locking individual checkboxes

[AlyssaWang]

Summary

If list_options are passed through to checkbox inputs with individual locked: true fields, then they will be disabled in the inputs dialog.

Testing Guidance

New tests are up in the demo suite for checkbox variations.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.05%. Comparing base (4f17e99) to head (959b065).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #522      +/-   ##
==========================================
+ Coverage   84.04%   84.05%   +0.01%     
==========================================
  Files         261      261              
  Lines       11385    11396      +11     
  Branches     1253     1255       +2     
==========================================
+ Hits         9568     9579      +11     
  Misses       1807     1807              
  Partials       10       10              

Flag	Coverage Δ
backend	92.17% <100.00%> (+0.01%)	⬆️
frontend	79.32% <100.00%> (+<0.01%)	⬆️

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