Clean up registration page

src/home/HomePage.jsx

@@ -0,0 +1,38 @@
+/*
+Copyright 2021 New Vector Ltd
+
+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 React from "react";
+import { useClient } from "../ConferenceCallManagerHooks";
+import { ErrorView, LoadingView } from "../FullScreenView";
+import { UnauthenticatedView } from "./UnauthenticatedView";
+import { RegisteredView } from "./RegisteredView";
+
+export function HomePage() {
+  const { isAuthenticated, isPasswordlessUser, loading, error, client } =
+    useClient();
+
+  if (loading) {
+    return <LoadingView />;
+  } else if (error) {
+    return <ErrorView error={error} />;
+  } else {
+    return isAuthenticated ? (
+      <RegisteredView isPasswordlessUser={isPasswordlessUser} client={client} />
+    ) : (
+      <UnauthenticatedView />
+    );
+  }
+}