Optimization method FormsService::canSubmit

[AIlkiv]

Currently, to check if a user has filled out the form, all entities are retrieved, and then two loops are performed at the PHP. My version does the same thing but with a single simple query.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 52.63158% with 9 lines in your changes missing coverage. Please review.

Project coverage is 46.03%. Comparing base (f6c1b8a) to head (a0b26df). Report is 394 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2225      +/-   ##
============================================
+ Coverage     45.95%   46.03%   +0.08%     
- Complexity      797      800       +3     
============================================
  Files            65       66       +1     
  Lines          3066     3065       -1     
============================================
+ Hits           1409     1411       +2     
+ Misses         1657     1654       -3     

[Chartman123]

@AIlkiv could you please rebase on current main?

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