feat(insights): Granular frontend feature flags II

[gggritso]

Re-creation of #71821 which I had to fast-revert

[codecov]

Bundle Report

Changes will increase total bundle size by 715 bytes ⬆️

Bundle name	Size	Change
app-webpack-bundle-array-push	27.92MB	715 bytes ⬆️

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 8 lines in your changes missing coverage. Please review.

Project coverage is 77.94%. Comparing base (5d78a21) to head (1780052).

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #72001      +/-   ##
==========================================
- Coverage   77.94%   77.94%   -0.01%     
==========================================
  Files        6572     6572              
  Lines      292601   292601              
  Branches    50520    50524       +4     
==========================================
- Hits       228058   228056       -2     
- Misses      58292    58294       +2     
  Partials     6251     6251              

Files	Coverage Δ
...ents/events/interfaces/spans/spanSummaryButton.tsx	58.82% <ø> (ø)
static/app/components/sidebar/index.tsx	80.71% <100.00%> (ø)
.../app/views/performance/browser/resources/index.tsx	100.00% <ø> (ø)
...ce/browser/resources/resourceSummaryPage/index.tsx	0.00% <ø> (ø)
...rformance/browser/resources/resourceView/index.tsx	65.90% <100.00%> (ø)
...ews/performance/browser/webVitals/pageOverview.tsx	68.08% <ø> (ø)
...ormance/browser/webVitals/webVitalsLandingPage.tsx	82.75% <ø> (ø)
...c/app/views/performance/cache/cacheLandingPage.tsx	0.00% <ø> (ø)
...views/performance/database/databaseLandingPage.tsx	76.31% <ø> (ø)
...s/performance/database/databaseSpanSummaryPage.tsx	92.59% <ø> (ø)
... and 21 more

... and 1 file with indirect coverage changes