Display version number

[gunnbr]

I think it would be useful to have a version number displayed somewhere, maybe on the About screen. This came up when I told a streamer that you made key presses show on the on screen keyboard. It's not working for him, so I really would like to see a version number displayed so we can make sure we're both using the same version. If it's still not working, then we can figure out if it's different browsers or what.