fix: add doc wrapper

Author: acao

plugins/doc-explorer-classic/src/DocExplorerGraphiQL.tsx

@@ -0,0 +1,16 @@
+import * as React from 'react';
+
+import { SchemaContext } from 'graphiql';
+
+import { DocExplorer } from './DocExplorer';
+
+/**
+ * Context Conusmer for rendering DocExplorer in GraphiQL.
+ */
+export default function DocExplorerGraphiQL() {
+  return (
+    <SchemaContext.Consumer>
+      {({ schema }) => <DocExplorer schema={schema} />}
+    </SchemaContext.Consumer>
+  );
+}