[Pilot mode: Add command] Window does not prompt feedback to users when typing invalid gender value

[dohaduong]

When trying to add pilot by the command add /n Captain4 /r 2 /a 20 /g 5 /fh 1000 (invalid gender value), there was no feedback to user and the Result Display remains the same (no feedback prompted back for invalid gender). Adding invalid gender was unabled but no feedback was given. I think maybe you could update this to prompt user the error.