Code review comment for lp://qastaging/~rpadovani/webbrowser-app/addressBarFullWidth

Actually, upstream fixed bug #1384278, so per design we can hide the left action in the edit mode.

So I changed the code to hide left action in edit mode and to change keyboard status.

I also changed webbrowser_app.tests.test_addressbar_states.TestAddressBarStates.test_looses_focus_when_reloading to use "Enter" on keyboard instead of clicking the reload button.

The branch now should be ready to be merged