Improve diff highlights and add tab keybindings

lua/plugins/tokyonight.lua

@@ -7,6 +7,10 @@ return {
         require("tokyonight").setup({
             transparent = false,
             dim_inactive = true,
+            on_highlights = function(highlights)
+                -- Make delete sections in diff look better
+                highlights["DiffDelete"]["fg"] = "#212331"
+            end,
         })
         vim.cmd.colorscheme "tokyonight-night"
     end,