add licenses

Author: e111077

catalog/site/css/stories.css

@@ -1,4 +1,10 @@
-#dragbar {
+/**
+ * @license
+ * Copyright 2023 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+ #dragbar {
   max-width: 100%;
   max-height: 100%;
 }

catalog/src/components/drag-playground.ts

@@ -1,3 +1,10 @@
+/**
+ * @license
+ * Copyright 2023 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+
 import { LitElement, css, html } from 'lit';
 import { customElement, state, query } from 'lit/decorators.js';
 import { classMap } from 'lit/directives/class-map.js';

catalog/src/pages/stories.ts

@@ -1 +1,7 @@
-import '../components/drag-playground.js';
+/**
+ * @license
+ * Copyright 2023 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import '../components/drag-playground.js';