add rktjmp/lush.nvim

[ana-rchy]

⚠️ Please verify that this feature request has NOT been suggested before.

• I checked and didn't find a similar feature request

🏷️ Feature Type

New Addon

🔖 Feature description

lush is fairly popular for theming nvim (1.6k stars), and its kinda a pain in the ass to figure out how to manually use a lush colorscheme (i had to put everything into one file and then dofile() on that in the after hook for the lush plugin)
so i would appreciate if lush was added as an option here

✔️ Solution

add a lush.nvim option along with an option to specify the lush colorschemes directory

❓ Alternatives

theres base16 as an option already but thats limited to, well, 16 colors

📝 Additional Context

No response

[snoweuph]

This is blocked by #1262