Get TSPlaygroundToggle functioning properly

lua/plugins/treesitter.lua

@@ -11,5 +11,9 @@ return {
       })
     end,
   },
-  { "nvim-treesitter/playground", dependencies = { "nvim-treesitter/nvim-treesitter" } },
+  {
+    "nvim-treesitter/playground",
+    dependencies = { "nvim-treesitter/nvim-treesitter" },
+    cmd = "TSPlaygroundToggle",
+  },
 }