fix(nvim): copilot_cmp behaviour

vim/lua/nvim_cmp_config.lua

@@ -68,14 +68,26 @@ cmp.setup({
 	}),
 	sorting = {
 		comparators = {
-			cmp.config.compare.offset,
 			cmp.config.compare.exact,
+			require("copilot_cmp.comparators").prioritize,
+			cmp.config.compare.offset,
 			cmp.config.compare.score,
 			cmp.config.compare.recently_used,
-			-- require("cmp-under-comparator").under,
+			cmp.config.compare.locality,
 			cmp.config.compare.kind,
+			cmp.config.compare.sort_text,
+			cmp.config.compare.length,
+			cmp.config.compare.order,
 		},
 	},
+	-- https://github.com/hrsh7th/nvim-cmp/wiki/Advanced-techniques#disabling-completion-in-certain-contexts-such-as-comments
+	enabled = function()
+		local context = require("cmp.config.context")
+		if vim.api.nvim_get_mode().mode == "c" then
+			return true
+		end
+		return not context.in_treesitter_capture("comment") and not context.in_syntax_group("Comment")
+	end,
 	formatting = {
 		fields = { "kind", "abbr", "menu" },
 	},