Add button to center on drone location to flight planning screen.

It is very hard to navigate the map on a Mac running parallels, adding a button to center on the drone location will help a lot.

The issue identifies the flight planning screen but does not name files or tests. Start by locating that screen and its map-related entry points, then determine how the drone location is exposed there. Done means a visible control can center the map on the drone location, including when navigating on a Mac running Parallels.

Written by the indexing model from the issue text.