Remember the last played station, allow resuming playback when starting with the "Mini Player" UI on startup
If you exited shortwave while the "Mini player" UI mode was active, on startup Shortwave will show the mini player, with blank information and the "stop" button (square symbol) that does nothing.
It would be pretty neat if it was a Play (triangle symbol) button that you could simply click to start playing the last used station again, without exiting the mini UI and needing to find and start playing the last station.