Quality-of-life app improvements

[haarp]

Hey,

it would be great if the app could remember the last host, port and password used when it's opened. Also, being able to use a hostname (not just an IP address) would be very convenient, I think. Lastly, the keyboard isn't auto-closed when you leave the menu, which overlaps the player controls.

Thanks a lot!

[mcastorina]

Great feedback, thanks! Definitely agree with these