Don't close Neovim if there's only packer's window

[mawkler]

display.close previously closed Neovim if there were no other windows

[wbthomason]

Thanks, and sorry for taking so long to get to this! Do you have an easy reproduction example? I haven't encountered this behavior before.

Separately, though I think it's probably wise to move to api.nvim_win_close regardless, I would feel more comfortable if we stored and used the display window ID rather than relying on the display window being the current window (i.e. by passing 0)

[mawkler]

Do you have an easy reproduction example?

1. Open a Packer window for instance using :PackerStatus
2. Close all other windows using <C-w><C-o>
3. Close Packer window by pressing q

[mawkler]

I would feel more comfortable if we stored and used the display window ID

I'm not sure exactly how you want this to be implemented, but feel free to add a commit that fixes this and/or elaborate :)