Add missing license headers.

src/www/views/contact_view/app_type.ts

@@ -1,3 +1,19 @@
+/**
+ * Copyright 2023 The Outline Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 /** The app variant to use, which dictates the options available to the user. */
 export enum AppType {
   CLIENT = 'client',

src/www/views/contact_view/issue_type.ts

@@ -1,3 +1,19 @@
+/**
+ * Copyright 2023 The Outline Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 /** Supported issue types in the feedback flow. */
 export enum IssueType {
   INSTALLATION = 'installation',