Pressing tab when there is only one completion suggestion should immediately apply it

[ficd0]

In the shell, we're used to tab-completion applying immediately if there is only one suggestion. However, in taskwarrior-tui, you need to press tab twice even if there is only a single option. I think having that option be automatically selected would be a UX improvement.

[kdheepak]

I agree. Ideally it would use a combination of ghost text for single entry completion and menu tab complete for more options.