fix(blink): blink highlight group additions

[whoop-t]

Description

Blink.cmp currently has a broken tokyonight color scheme due to some highlight groups not being set.
This fixes the issues with cmp menu bg and border as well as signature border

Screenshots

BEFORE

AFTER

Screenshots have transparent theme, but I can take some of default theme if needed

[dembilesmana]

needed merge this commit

[whoop-t]

@dembilesmana you can just point to my fork if you want the fix while we wait for it to be merged/fixed in this repo.

return {
	-- "folke/tokyonight.nvim",
	-- USING fork until blink color fixes are merged
  "whoop-t/tokyonight.nvim"
}

[folke]

ty!