pass heightBefore, scrollTop and viewportHeight to Category
pass heightBefore, scrollTop and viewportHeight to Category

to support having multiple LazyRenderLists in one viewport

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