Toggle status bar visibility or combine into tool bar

Pretty self-explanatory. Option to hide the (rather large) status bar on the bottom of the window. Optionally, make it smaller vertically, or move the coordinates and zoom factor drop down up to the tool bar, as there is ample space for them. The point is both the tool bar and status bar take a significant amount of space on smaller screens (MacBook Air for example), much of it unused, and it would be nice to reclaim some of this space for the tile map.

Start by reviewing the desktop editor's status bar and tool bar, focusing on the space used on smaller screens. Determine whether hiding, vertically shrinking, or combining these controls is feasible, and verify that the coordinates and zoom factor remain usable after the change.

Written by the indexing model from the issue text.