Station names on OnAir, keyboard and contrast fixes Latest

What's new

• OnAir: the previous/next station buttons are now smaller and show the
  name of the station they switch to (up to 2 lines). They are hidden
  when only one station is available.

Fixes

• Song request: the error message is now shown right below the search
  bar, so the on-screen keyboard no longer hides it on mobile.
• iOS: the search keyboard on the song request tab can now be dismissed
  (new "Done" button, dismissed on search and on list scroll).
• iOS: the clear button in the song request search is now readable in the
  dark theme.
• iOS: Fix iOS keyboard dismiss on song request search
• OnAir: removed an extra empty gap above the recently played list.
• Improved text contrast in the dark theme (muted text and search
  placeholder are lighter).
• Desktop: window height reduced by 10%.