Improve the color for snacks.nvim (explorer) and avante.nvim

[KhoaLee]

Hi, I notice that the color background in some elements are not good. The following image is what I currently have on my neovim. I think it will look great if the background color is the of the editor background.

[datsfilipe]

would need to add support for these plugins under lua/integrations as we do for some others, it's inevitable that the default highlighting might not look good for some non-supported plugins

added some labels in case someone wants to take a step and update it before me, but if not I'll take a look when I have some time

[KhoaLee]

Thanks for your reply, I will also try to contribute to your work as well when I have time. It is a good opportunity for me to learn lua as well.

[datsfilipe]

I'll assign it to you then, thanks in advance