Remove arbitrary limits from send/receive events for widgets
Remove arbitrary limits from send/receive events for widgets

Fixes https://github.com/vector-im/element-web/issues/17994

As per MSC change: https://github.com/matrix-org/matrix-doc/pull/2762/commits/aeadae81e2d68f76523eb61ff0ebbbd5c3202deb
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