Merge pull request #3751 from matrix-org/t3chguy/react16_contexts_online_dot

Room Tile DMs online/active green dot

res/css/_components.scss

@@ -173,6 +173,7 @@
 @import "./views/rooms/_SendMessageComposer.scss";
 @import "./views/rooms/_Stickers.scss";
 @import "./views/rooms/_TopUnreadMessagesBar.scss";
+@import "./views/rooms/_UserOnlineDot.scss";
 @import "./views/rooms/_WhoIsTypingTile.scss";
 @import "./views/settings/_AvatarSetting.scss";
 @import "./views/settings/_CrossSigningPanel.scss";

res/css/views/rooms/_RoomTile.scss

@@ -1,5 +1,6 @@
 /*
 Copyright 2015, 2016 OpenMarket Ltd
+Copyright 2019 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.

res/css/views/rooms/_UserOnlineDot.scss

@@ -0,0 +1,23 @@
+/*
+Copyright 2019 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.
+*/
+
+.mx_UserOnlineDot {
+    border-radius: 50%;
+    background-color: $accent-color;
+    height: 5px;
+    width: 5px;
+    display: inline-block;
+}