refactor(v2): move source files to be under website/src directory (#1609)

* refactor(v2): move source files to be under website/src directory

* misc: rename src constant

website/src/pages/feedback/index.js

@@ -0,0 +1,32 @@
+/**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import React, {useEffect} from 'react';
+import Layout from '@theme/Layout';
+
+import canny from '../../scripts/canny';
+
+const BOARD_TOKEN = '054e0e53-d951-b14c-7e74-9eb8f9ed2f91';
+
+function Feedback() {
+  useEffect(() => {
+    canny();
+    window.Canny &&
+      window.Canny('render', {
+        boardToken: BOARD_TOKEN,
+        basePath: '/feedback',
+      });
+  }, []);
+
+  return (
+    <Layout>
+      <div className="container margin-vert--xl" data-canny />
+    </Layout>
+  );
+}
+
+export default Feedback;