feat: filter votes by choice

[wa0x6e]

Another implementation of #571

Add choice_in filter to Vote, allowing query such as

query Vote {
  votes(where: {choice_in: [15]}) {
    id
    choice
  }
}

Other changes

• Refactor moderation and spaces cache to run only when called, for easier tests

Notes

It is impossible to add an INDEX on the choice JSON column, as the stored data format is not consistent, and can be either an INT, an array of INT, or an Object.

The filter should ideally be used only along some other filter, such as proposal id, etc ... to filter down the results first

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2d4c97e) 2.40% compared to head (4fa8baf) 16.84%.

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #712       +/-   ##
===========================================
+ Coverage    2.40%   16.84%   +14.44%     
===========================================
  Files          39       39               
  Lines        2037     2048       +11     
  Branches       37       75       +38     
===========================================
+ Hits           49      345      +296     
+ Misses       1951     1671      -280     
+ Partials       37       32        -5     

Files	Coverage Δ
src/graphql/operations/votes.ts	63.63% <100.00%> (+63.63%)	⬆️
src/helpers/spaces.ts	26.98% <100.00%> (+26.98%)	⬆️

... and 3 files with indirect coverage changes

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