Instead of simply fixing the memory leak for this issue by directly
removing references, it makes more sense to move the whole
BiometricPrompt out of the fragment and into it's own feature to be
re-usable.
* For #15761 - Part 1: Turn ON the showGridViewInTabsSettings feature flag
* For #15761 - Part 2: Remove the showGridViewInTabsSettings feature flag and show the Tab view preference category
* For #15278: added CoroutineManager to count runBlocking calls
* For #15278: Added actual detekt rule for runblocking and its config to the yaml
* For #15278: Added unit test for RunblockingCounter
* For #15278: renamed StrictModeStartupSuppressionCountTest.kt to PerformanceStartupTest.kt and added runBlockingCount test
* Lint fix
* For #15278: made runblocking a Long to prevent overflow
* For #15278: fixed MozRunblocking name, description and moved RunBlockingCounter to perf package
* For #15278:Renamed MozillaRunblockingCheck to MozillaRunBlockingCheck
* For #15278: Added setup for unit test, since it failed without restting counter
* For #15278: Fixed naming for RunBlocking lint check
* For #15278: removed changes made to test to use runBlockingIncrement
* For #15728: added test exclusion for runBlocking check
* For #15278: changed null check and added Synchronized to count setter
* For #15278: fix for nits
* For #15278: added StartupExcessiveResourceUseTest to CODEOWNERS
* For #15278: fixed for nits
* For #15278: Moved increment function to extension function and fixed indentation
* For #15278: Added tests for Atomic Integer extension and nit fix
* For #15937 - Remove the topFrecentSite feature flag
* For #15937 - Hide the "Pull to refresh" preference since its visibility is managed by a feature flag
- Renames CloseTabsSettingsFragment.kt to TabsSettingsFragment.kt
- Renames close_tabs_preferences.xml to tabs_preferences.xml
- Adds preference options for the switching between the Grid and List tab views
set save button state by calling invalidateOptionsMenu, causing onPrepareOptionsMenu to be called which will enable/disable the save button depending on if changes have been made or not