* Issue mozilla-mobile#21319 - Moved inactive tabs to the top of the normal tabs tray.
* Issue mozilla-mobile#21319 - Added a delete icon to delete ALL inactive tabs.
* Issue mozilla-mobile#21319 - Changed default inactive time period to 14 days
* Issue mozilla-mobile#21319 - Hooked inactive tabs setting to UI code
Inactive tabs setting is also disabled when the user has selected the one day or week auto-close tab setting.
* Issue mozilla-mobile#21319 - File and Lint cleanup
* PR: Fixed bug causing grouped tabs to also show in "Other" when marked as inactive but inactive is OFF in Settings
* PR: Fixed lint warnings
* PR: Removed redundant feature check
* PR - Ignore test until search term tab groups switch is done
