test: Adds tests to the filter scope components

[michael-s-molina]

SUMMARY

Adds tests to the filter scope components.

TEST PLAN

1 - Execute filter scope tests.
2 - All tests should pass.

@rusackas @junlincc

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #13887 (ab6bc17) into master (8b9c142) will increase coverage by 1.20%.
The diff coverage is 90.90%.

❗ Current head ab6bc17 differs from pull request most recent head 61a1181. Consider uploading reports for the commit 61a1181 to get more accurate results

@@            Coverage Diff             @@
##           master   #13887      +/-   ##
==========================================
+ Coverage   77.87%   79.08%   +1.20%     
==========================================
  Files         935      935              
  Lines       47375    47379       +4     
  Branches     5964     5963       -1     
==========================================
+ Hits        36895    37468     +573     
+ Misses      10323     9784     -539     
+ Partials      157      127      -30     

Flag	Coverage Δ
cypress	56.04% <70.00%> (+5.27%)	⬆️
javascript	68.22% <90.90%> (+1.10%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...shboard/components/filterscope/FilterFieldItem.jsx	100.00% <ø> (+50.00%)	⬆️
...shboard/components/filterscope/FilterFieldTree.jsx	66.66% <ø> (+22.22%)	⬆️
...hboard/components/filterscope/FilterScopeModal.tsx	75.00% <ø> (ø)
...ard/components/filterscope/FilterScopeSelector.jsx	87.67% <ø> (+85.61%)	⬆️
...shboard/components/filterscope/FilterScopeTree.jsx	70.00% <ø> (+20.00%)	⬆️
...ponents/filterscope/renderFilterFieldTreeNodes.jsx	90.00% <ø> (+90.00%)	⬆️
...ponents/filterscope/renderFilterScopeTreeNodes.jsx	86.66% <ø> (+86.66%)	⬆️
...oard/components/nativeFilters/FilterBar/Header.tsx	87.09% <0.00%> (ø)
...frontend/src/components/Checkbox/CheckboxIcons.tsx	100.00% <100.00%> (+14.28%)	⬆️
superset-frontend/src/SqlLab/actions/sqlLab.js	63.26% <0.00%> (+0.20%)	⬆️
... and 62 more

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[geido]

Nice one!

[rusackas]

LGTM, thanks!