* initialTheme should not be a dependent of useCallback since its a ref
* a few cleanup on test to make it more clearer
* add a bit more description
* fix(MM-64710): changing themes repeatedly in rapid succession cause the theme to not register (#8980)
* add more test, doubleTap prevention test
* changes based on comments
* remove the use of currentTheme
* consolidate handleSelectTheme with setThemePreference
* add comment to explain why we're storing customTheme in a state
