jumpToLiveTimeline() on scroll_to_bottom

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

src/components/structures/TimelinePanel.js

@@ -463,6 +463,9 @@ class TimelinePanel extends React.Component {
                 }
             });
         }
+        if (payload.action === "scroll_to_bottom") {
+            this.jumpToLiveTimeline();
+        }
     };
 
     onRoomTimeline = (ev, room, toStartOfTimeline, removed, data) => {