feat: nixvim refactor

modules/home-manager/programs/nixvim/presets/base/syntax.nix

@@ -0,0 +1,36 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+let
+  cfg = config.presets.base.syntax;
+in
+{
+  options.presets.base.syntax = {
+    enable = lib.mkEnableOption "syntax highlighting";
+  };
+
+  config = lib.mkIf cfg.enable {
+    plugins = {
+      treesitter = {
+        enable = true;
+        indent = true;
+        grammarPackages = pkgs.vimPlugins.nvim-treesitter.allGrammars;
+        nixvimInjections = true;
+      };
+      indent-blankline = {
+        enable = lib.mkDefault true;
+        settings = {
+          indent.char = "▏";
+          scope.show_start = false;
+        };
+      };
+      illuminate.enable = lib.mkDefault true;
+      nvim-autopairs.enable = lib.mkDefault true;
+      nvim-colorizer.enable = lib.mkDefault true;
+      ts-autotag.enable = lib.mkDefault true;
+    };
+  };
+}