modules/nvim-tree: add option to disable netrw

disable netrw by default

modules/plugins/navigation/nvim-tree.nix

@@ -9,14 +9,32 @@ let cfg = config.plugins.navigation.nvim-tree; in
     settings = mkOption {
       type = attrs;
       default = { };
+      description = ''
+        `:help nvim-tree-setup`
+      '';
+    };
+    disableNetrw = mkOption {
+      type = bool;
+      default = true;
+      description = ''
+        Disabling netrw is strongly advised.
+
+        `:help nvim-tree-netrw`
+      '';
     };
   };
 
+
   config = lib.mkIf cfg.enable {
     plugin.nvim-tree-lua = {
       name = "nvim-tree";
       package = cfg.package;
       setupSettings = cfg.settings;
     };
+
+    vim.g = lib.mkIf cfg.disableNetrw {
+      loaded_netrw = 1;
+      loaded_netrwPlugin = 1;
+    };
   };
 }