Support for fidget.nvim

[zefr0x]

I've tested that with every github theme from dark_default to light_colorblind and it conflicts with fidget.nvim plugin, since the color of the FidgetTask text (which is linked to NonText here) is the same as the background, so the text is invisible.

For now i fixed that using:

vim.api.nvim_set_hl(0, "FidgetTask", {fg="#58a6ff"})

This native lua function is available for (nvim 0.7.0+) [documentation](https://neovim.io/doc/user/api.html#nvim_set_hl())

More info:

• https://github.com/j-hui/fidget.nvim/blob/main/doc/fidget.md#highlights