Dexie v4.2.0-rc.1

Release Candidate of dexie@4.2

In contrast to previous 4.1.x betas, we've extracted the Y.js support from the "dexie" package into "y-dexie".

Only if the experimental Y.js support from 4.1.x beta was used, a migration is needed:

npm install y-dexie
Instead of import { DexieYProvider } from 'dexie' --> import { DexieYProvider } from 'y-dexie'
Instead of DexieyYProvider<Y.Doc> --> DexieYProvider.
No need to pass Y to Dexie constructor, but instead, pass the yDexie addon:
```
import yDexie from 'y-dexie';
...
const db = new Dexie('foo', { addons: [yDexie] });
```
With dexieCloud addon, make sure to pass yDexie first: { addons: [yDexie, dexieCloud] }

Declare Y.Doc properties as prop:Y.Doc instead of just prop:Y

db.version(1).stores({
  friends: `
    ++id,
    name,
    age,
    friendNotes: Y.Doc` // where friendNotes holds the Y.Doc instance
});

In contrast to previous 4.1.x betas, we've extracted the Y.js support from the "dexie" package into "y-dexie".

Only if the experimental Y.js support from 4.1.x beta was used, a migration is needed:

npm install y-dexie
Instead of import { DexieYProvider } from 'dexie' --> import { DexieYProvider } from 'y-dexie'
Instead of DexieyYProvider<Y.Doc> --> DexieYProvider.
No need to pass Y to Dexie constructor, but instead, pass the yDexie addon:
```
import yDexie from 'y-dexie';
...
const db = new Dexie('foo', { addons: [yDexie] });
```
With dexieCloud addon, make sure to pass yDexie first: { addons: [yDexie, dexieCloud] }

Declare Y.Doc properties as prop:Y.Doc instead of just prop:Y

db.version(1).stores({
  friends: `
    ++id,
    name,
    age,
    friendNotes: Y.Doc` // where friendNotes holds the Y.Doc instance
});