docs: more breaking changes (#6313)
docs: more breaking changes (#6313)

* docs: finalize breaking change

* docs: fix spelling

* docs: audit(Time) breaking changes

* docs: mention tighter fromEvent types
ReactiveX/rxjs,martinsik/rxjs,benlesh/RxJS,benlesh/RxJS,ReactiveX/rxjs,ReactiveX/RxJS,ReactiveX/RxJS,ReactiveX/rxjs,martinsik/rxjs,martinsik/rxjs,benlesh/RxJS,ReactiveX/rxjs,benlesh/RxJS,ReactiveX/RxJS,ReactiveX/RxJS,martinsik/rxjs