Expansion state of the route setup dialog

[vshcherb]

Taken from #8104
When on the map screen you tap the 'Directions' button, the route config dialog pops up fully expanded (to show all the options), which is fine.

But once the route calculation has started, i.e. after you have set a destination, the dialog remains visible in inconsistent states: sometimes fully expanded obscuring the entire map, sometimes in its 'two thirds expanded' state, probably depending on e.g. if you set the destination via selecting a Favorite, via the Previous route history, if you set an extra option, etc.

I suggest that in all cases once the route calculation has started we set the route dialog to its '~one third' expanded state (the one where just the transport selection, the To: and From: lines, the Options line, and the Dismiss/Start buttons are visible). (i.e. 'one up' from the totally collapsed state where only the blue line is visible at the bottom of the map screen).

[sonora]

Not sure it is on purpose, but I still get this screen during route calculation? Should collapse that as well?

[vshcherb]

This screen should be the same height as route preparation screen before calculation.
Probably we could make it consistent with finish state screen