before:
set global `blocksuiteEditorAtom` state in `<BlocksuiteEditorImpl />`
after:
Rename `blocksuiteEditorAtom` to `activeBlocksuiteEditorAtom`
And move the logic of setting this atom to `<PageDetailEditor />`.
benefit:
* make BlocksuiteEditor pure
* keep @toeverything/component clear
* Clarify the purpose of `activeBlocksuiteEditorAtom`