fix(playground): backport new playground

cli/src/playground.html

@@ -19,6 +19,11 @@
         <input id="logging-checkbox" type="checkbox"></input>
       </div>
 
+      <div class=header-item>
+        <label for="anonymous-nodes-checkbox">show anonymous nodes</label>
+        <input id="anonymous-nodes-checkbox" type="checkbox"></input>
+      </div>
+
       <div class=header-item>
         <label for="query-checkbox">query</label>
         <input id="query-checkbox" type="checkbox"></input>
@@ -67,6 +72,12 @@
   <script src=tree-sitter.js></script>
   <script src=playground.js></script>
 
+  <script>
+  setTimeout(() => {
+    window.initializePlayground({local: true});
+  }, 1000);
+  </script>
+
   <style>
     body {
       margin: 0;