Show ETA column on mobile in landscape

[kbernhagen]

I want to see ETA frequently.
Please add it when phone is in landscape.

[jcoffland]

This could be solved by adding ETA when the screen width is slightly wider. It does complicate things a bit though since then we have "large", "small" and "tiny" screen modes. Note, that Web Control does not detect mobile devices. It just changes to tiny screen mode when the screen width is below a threshold number of pixels.