Fix a bug where the icons need to be clicked twice after reload

Clicking on the member icon was fine, but clicking on the file panel wouldn't bring it up - it had to be clicked a second time to actually show the panel.

src/stores/RightPanelStore.js

@@ -123,6 +123,7 @@ export default class RightPanelStore extends Store {
             } else {
                 this._setState({
                     lastGroupPhase: targetPhase,
+                    showGroupPanel: true,
                 });
             }
         } else {
@@ -133,6 +134,7 @@ export default class RightPanelStore extends Store {
             } else {
                 this._setState({
                     lastRoomPhase: targetPhase,
+                    showRoomPanel: true,
                 });
             }
         }