Room header UI updates (#11507)

* Fix performance issues with useRoomMembers

With the current implementation it would create a new function, with leading: true, rendering the whole throttling useless

* Add public room indicator

* Format room members count better

* Add public room test

* Add search to room summary card

* Update settings UI

* Update snapshot

* Remove default title attribute

src/components/structures/RightPanel.tsx

@@ -57,6 +57,7 @@ interface RoomlessProps extends BaseProps {
 interface RoomProps extends BaseProps {
     room: Room;
     permalinkCreator: RoomPermalinkCreator;
+    onSearchClick?: () => void;
 }
 
 type Props = XOR<RoomlessProps, RoomProps>;
@@ -293,6 +294,7 @@ export default class RightPanel extends React.Component<Props, IState> {
                             onClose={this.onClose}
                             // whenever RightPanel is passed a room it is passed a permalinkcreator
                             permalinkCreator={this.props.permalinkCreator!}
+                            onSearchClick={this.props.onSearchClick}
                         />
                     );
                 }