Fallback to normal vertical mode in the minibuffer when in the terminal.

[WuuBoLin]

The section how-to-let-vertico-posframe-work-well-with-vertico-multiform in the README shows the example of setting vertico-posframe-fallback-mode to vertico-buffer-mode, but buffer mode is difficult to use and not suitable for most use case, any ways to set default vertical mode as fallback?

I had a discussion on vertico's repo.

[tumashu]

I try to fix this issue, please try it.

[WuuBoLin]

IT WORKS!! Thank you very much. I appreciate your work.