* Issue #18862: Add new addBookmark BookmarksUseCase
* Issue #18862: Add class for state binding features
* Issue #18862: Add delete multiple tabs to tray interactor
* Issue #18862: Add new actions to navigation interactor
* Issue #18862: Enable select mode from main tray menu
* Issue #18862: Add menu when in select mode
* Close#18862: Add multi-select banner to tabs tray
* Close#18862: Add select support for handle UI
We apply various layout changes to the "handle" UI in the tabs tray when
switching modes. It isn't quite clear to my, why we do this, if it's
really needed to meet the end result, and if there is a better way.
For now, we're simplying moving over that logic that we can re-evaluate
at a later time.
With a dynamic bottom toolbar the browser extends all the way to the bottom of
the screen and so when the find in page bar is shown it will be so above the
bottom part of the browser which may contain exactly the searched for items.
To fix the browser must effectively be placed at the top of the newly shown
find in page bar.
FindInPageIntegration which already updated the toolbar to make room for the
find in page bar now receives more data based on which it will be able to
better update the layout of BrowserFragment to to support showing the find in
page bar.
Copied the TabsTouchHelper from the `tabtray` package here so we don't
need to re-write our own because there's nothing more to add.
We can hook this up with our tabs tray here by putting it in the
`BaseBrowserTrayList` for our normal and private tabs list.
China fxa related string
Add switch preference in settings to use local/global fxa server
inherit fennec FxA settings
Present or hide fxa switch according to isMozillaonline
Allow China fxa server auto login during migration