Closes #6288: Update docs for local development [ci skip]

[jonalmeida]

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Closes #6288

[codecov]

Codecov Report

Merging #6391 into master will decrease coverage by 0.06%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #6391      +/-   ##
============================================
- Coverage     78.54%   78.47%   -0.07%     
+ Complexity     4612     4537      -75     
============================================
  Files           598      596       -2     
  Lines         22210    22064     -146     
  Branches       3258     3227      -31     
============================================
- Hits          17444    17314     -130     
+ Misses         3426     3424       -2     
+ Partials       1340     1326      -14     

Impacted Files	Coverage Δ	Complexity Δ
...a/components/support/migration/TelemetryHelpers.kt	88.17% <0.00%> (-0.72%)	0.00% <0.00%> (ø%)
...zilla/components/feature/session/SessionFeature.kt
...ponents/feature/session/PictureInPictureFeature.kt
...illa/components/feature/session/SessionUseCases.kt
...telemetry/measurement/ExperimentsMapMeasurement.kt
...ents/feature/session/CoordinateScrollingFeature.kt
.../syncedtabs/SyncedTabsStorageSuggestionProvider.kt
...ents/feature/session/TrackingProtectionUseCases.kt
...illa/components/feature/session/HistoryDelegate.kt
...ature/session/behavior/EngineViewBottomBehavior.kt
... and 21 more

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[jonalmeida]

bors r=Amejia481

[bors]

Build succeeded

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