Clear the input prompt after sending command

[kaledin]

This is a matter of preference, but I'd like the input prompt to be cleared after you have entered the command (as opposed to the current behavior when the previous command keeps being selected after it is sent to the world)

[hankinsoft]

Can you sign up for the TestFlight (https://testflight.apple.com/join/b4qOgXKv). An option for this and #23 has been added to connections (edit your connection and use the advanced dropdown).