add support for loading privacy policies

so we can link to them in a new tab from server selection

src/policy/LoadServerPolicyView.js

@@ -0,0 +1,26 @@
+/*
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+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.
+*/
+
+import {TemplateView} from "../utils/TemplateView.js";
+
+export class LoadServerPolicyView extends TemplateView {
+	render(t, vm) {
+		return t.div({className: "LoadServerPolicyView card"}, [
+			t.div({className: {spinner: true, hidden: vm => !vm.loading}}),
+            t.h2(vm => vm.message)
+		]);
+	}
+}