Updates for iOS in-context signup support (#347)

* Updates for iOS in-context signup support

Passes a new flag when autofill is opened to let the native side know if
in-context signup is available.

Updates the open tooltip functionality to support use on mobile apps
which don't use focus events.

* Remove open tooltip functionality for mobile apps and refactor checks

* Refresh state after showing duck addresses

* Extract state change update and use after alias call

* Run autofill finished functionality on get alias callback

* Make alias optional and don't format when missing

* Only open incontext signup on Dax icon click

* Correct typo

* Commit compiled code

Signed-off-by: Emanuele Feliziani <feliziani.emanuele@gmail.com>

---------

Signed-off-by: Emanuele Feliziani <feliziani.emanuele@gmail.com>
Co-authored-by: Emanuele Feliziani <feliziani.emanuele@gmail.com>