some colorscheme changes

lua/pika/plugins/treesitter.lua

@@ -7,14 +7,11 @@ return {
 	},
 	config = function()
 		require("nvim-treesitter.configs").setup({
-			highlight = {
-				enable = true,
-			},
+			highlight = { enable = true },
 			indent = { enable = true },
 			autotag = { enable = true },
 			ensure_installed = {
 				"bash",
-				-- "fish",
 				"gitignore",
 				"git_config",
 				"markdown",