Add E2EE lock

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

src/E2EELock.module.css

@@ -0,0 +1,28 @@
+/*
+Copyright 2023 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.
+*/
+
+.e2eeLock {
+  width: 32px;
+  height: 32px;
+
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  margin: 8px;
+
+  border-radius: 100%;
+  background-color: var(--subtle-primary);
+}