Support borders in Neovim

[toupeira]

Thanks for the great plugin!

This adds window border support for Neovim, disabled by default.

I saw there was some previous interest in #27, #77, and #74.

Two questions:

• Does this need more/clearer docs?
• Is it okay if this is Neovim-only? Looks like popup_menu() supports borders too, but in a different format: https://vimhelp.org/popup.txt.html#popup_create-arguments.

[toupeira]

Hmm I had an idea: Instead of adding this border setting we could also add a generic "window options" dictionary, so users could pass any of the available options for nvim_open_win() or popup_menu(). These would be merged with the existing options in plugin/any-jump.vim.

What do you think? I would probably add two separate dictionaries for Vim and Neovim, and call it something like g:any_jump_vim_window_options and g:any_jump_nvim_window_options.

[toupeira]

@pechorin hi there, friendly ping in case you didn't see this yet 😉

Curious to hear your thoughts on my idea in #115 (comment)