These are some leftovers from #174 - Nothing special here. Maybe some of them will be fixed as part of other tickets. Therefore this one is going to be parked right away.
Remove value notifier, convert to stream -> _selectionStartInViewport
Split similar to attributes - class BlockEmbedM extends EmbeddableM
Wrap all states in services
Check all models and add immutable
Move history params to config (when coop)
Check if the second refactoring changed memory consumption
These are some leftovers from #174 - Nothing special here. Maybe some of them will be fixed as part of other tickets. Therefore this one is going to be parked right away.