Rename tlstore to store (#1507)

This PR renames the `@tldraw/tlstore` package to `@tldraw/store`, mainly
to avoid confusion between `TLStore`. Will be doing the same with other
packages.

### Change Type

- [x] `major` — Breaking Change

### Release Notes

- Replace @tldraw/tlstore with @tldraw/store

packages/editor/src/lib/config/createTLStore.ts

@@ -1,3 +1,4 @@
+import { Migrations, Store, StoreSnapshot } from '@tldraw/store'
 import {
 	InstanceRecordType,
 	TLDOCUMENT_ID,
@@ -6,7 +7,6 @@ import {
 	TLStore,
 	createTLSchema,
 } from '@tldraw/tlschema'
-import { Migrations, Store, StoreSnapshot } from '@tldraw/tlstore'
 import { TLShapeUtilConstructor } from '../app/shapeutils/TLShapeUtil'
 
 /** @public */