Snap can be any of off, 8px or 64px.
The snap is used when moving and transforming entities.
When transforming and locking aspect ratio, the snap is ignored entirely, because we'd change the aspect ratio if we forced the snap.
Otherwise, if we are not locking aspect ratio (e.g. the user is holding shift), we snap the transform anchors to the grid.
- Rely on redux + reselect more
- Remove all nanostores that simply "mirrored" redux state in favor of direct subscriptions to redux store
- Add abstractions for creating redux subs and running selectors
- Add `initialize` method to CanvasModuleBase, for post-instantiation tasks
- Reduce local caching of state in modules to a minimum
- Throttle pushing to history for actions of the same type, starting with 1000ms throttle.
- History has a limit of 64 items, same as workflow editor
- Add clear history button
- Fix an issue where entity transformers would reset the entity state when the entity is fully transparent, resetting the redo stack. This could happen when you undo to the starting state of a layer
I learned that the inline selector syntax recreates the selector function on every render:
```ts
const val = useAppSelector((s) => s.slice.val)
```
Not good! Better is to create a selector outside the function and use it. Doing that for all selectors now, most of the way through now. Feels snappier.
