Handle/hide old rooms in the room list
Handle/hide old rooms in the room list

Fixes https://github.com/vector-im/riot-web/issues/14003
matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk