Address entry page

Right now, on address entry, we have about 50% of the page occupied by history and the second 50% by a current page. Also, all buttons are displayed on navigation bar while entering the address. This all takes space and prevents focusing on task in hand. I suggest:

1. use the page when user hits address field
2. show address covering full width of the page by hiding all other buttons. address field can be displaced by sliding it
3. while typing, show hits from bookmarks and history

I am leaving it open on how address should be shown in navigation bar, for that a separate issue will be filed.

Its also up to debate how to animate the new address field entry. Common option is to have it animated from bottom-to-top with the panel coming out. That looks logical, but makes it complicated to have it displaced by swiping down as we have list of history items below address. On Sailfish Browser, its resolved by forwarding swipe down to the panel only after inner history list cannot swipe up anymore. Works in practice, as it is uncommon to scroll down in the history list as much.

Alternative would be to have a new Kirigami page appearing allowing users to swipe it back. But that's probably a bit too strange.