Change avatar to use Compound implementation (#11448)

* Move avatar to new compound implementation

* Make space avatars square

* Remove reference to the avatar initial CSS class

* remove references to mx_BaseAvatar_image

* Fixe test suites

* Fix accessbility violations

* Add ConfirmUserActionDialog test

* Fix tests

* Add FacePile test

* Fix items clipping in members list

* Fix user info avatar sizing

* Fix tests

src/components/views/rooms/RoomTile.tsx

@@ -479,7 +479,7 @@ export class RoomTile extends React.PureComponent<ClassProps, State> {
                         >
                             <DecoratedRoomAvatar
                                 room={this.props.room}
-                                avatarSize={32}
+                                size="32px"
                                 displayBadge={this.props.isMinimized}
                                 tooltipProps={{ tabIndex: isActive ? 0 : -1 }}
                             />