[lexical] Bug Fix: Fix selected text not properly deleted after IME input on Safari (macOS)#8154

sKawashima wants to merge 2 commits intofacebook:mainfacebook/lexical:mainfrom

sKawashima:fix/safari-ime-composition-flag-clearsKawashima/lexical:fix/safari-ime-composition-flag-clearCopy head branch name to clipboard