fix: make edit prefill work correctly from EditHistory
fix: make edit prefill work correctly from EditHistory

handle encrypted and unencrypted events

get the correct event_id (the base message) when called from EditHistoryMessage

keep only the `body` and `msgtype` fields when prefilling

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