nixvim: add markview.nvim plugin

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

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

@@ -14,5 +14,6 @@
     ./scrollbar.nix
     ./ufo.nix
     ./zen-mode.nix
+    ./markview.nix
   ];
 }

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

@@ -0,0 +1,8 @@
+{ pkgs, ... }: {
+  programs.nixvim = {
+    extraPlugins = [ pkgs.vimPlugins.markview-nvim ];
+    extraConfigLua = ''
+      require("markview").setup()
+    '';
+  };
+}