nixvim: add nvim-surround and nvim-colorizer.lua

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

modules/home/nixvim/plugins/ui/colorizer.nix

@@ -0,0 +1,18 @@
+{pkgs, ...}: {
+  programs.nixvim = {
+    extraPlugins = [pkgs.vimPlugins.nvim-colorizer-lua];
+    extraConfigLua = ''
+      require("colorizer").setup({
+        filetypes = { "*" },
+        user_default_options = {
+          RGB = true,
+          RRGGBB = true,
+          names = false,
+          css = true,
+          tailwind = true,
+          mode = "background",
+        },
+      })
+    '';
+  };
+}

modules/home/nixvim/plugins/ui/default.nix

@@ -9,5 +9,6 @@
     ./treesitter.nix
     ./barbar.nix
     ./lightbulb.nix
+    ./colorizer.nix
   ];
 }