chore: Removes direct theme imports

[michael-s-molina]

SUMMARY

Removes remaining direct theme imports to make the components themeable. Test files are not affected.

This PR also disables the no-restricted-imports lint rule in test files since legacy tests are importing the theme directly.

TESTING INSTRUCTIONS

1 - Execute all tests
2 - All tests should pass

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• 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

[michael-s-molina]

ThemeProvider is already being set in src/SqlLab/App.jsx

[codecov]

Codecov Report

Merging #19368 (e3959b4) into master (a39dd44) will increase coverage by 0.19%.
The diff coverage is 100.00%.

❗ Current head e3959b4 differs from pull request most recent head ff9ec19. Consider uploading reports for the commit ff9ec19 to get more accurate results

@@            Coverage Diff             @@
##           master   #19368      +/-   ##
==========================================
+ Coverage   66.48%   66.67%   +0.19%     
==========================================
  Files        1670     1676       +6     
  Lines       63958    64717     +759     
  Branches     6506     6506              
==========================================
+ Hits        42525    43153     +628     
- Misses      19747    19878     +131     
  Partials     1686     1686              

Flag	Coverage Δ
javascript	51.32% <100.00%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
...erset-frontend/src/SqlLab/components/App/index.jsx	55.55% <ø> (ø)
superset-frontend/src/components/Icons/Icon.tsx	95.23% <ø> (ø)
...rc/views/CRUD/alert/components/AlertStatusIcon.tsx	30.55% <ø> (ø)
...c/SqlLab/components/RunQueryActionButton/index.tsx	51.72% <100.00%> (+1.72%)	⬆️
...t-frontend/src/components/CertifiedBadge/index.tsx	100.00% <100.00%> (ø)
...tiveFilters/FilterBar/FilterSets/FilterSetUnit.tsx	92.85% <100.00%> (+0.54%)	⬆️
...re/components/controls/DatasourceControl/index.jsx	72.36% <100.00%> (ø)
superset/cli/test.py	83.72% <0.00%> (-10.22%)	⬇️
superset/initialization/__init__.py	90.90% <0.00%> (-0.32%)	⬇️
superset/utils/pandas_postprocessing/utils.py	96.49% <0.00%> (-0.07%)	⬇️
... and 17 more

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[geido]

LGTM!