Updated dist files for docMapper

Added new docMapper option, which allows saving data to custom fields and allows custom data structure. Thanks @mitoyouhei for the contribution.

Local cache with indexedDB

Added cache feature to y-fire using indexedDB. y-fire now saves yjs documents in indexedDB until it is pushed to Firestore.

Breaking changes:

• Replaced destroyHandler method with destroy

Github actions to release on npm

Some minor changes to the github workflow file.

First release 🚀

First release party 🎉

• Firestore connection and database provider for Yjs
• NPM module release action
• Updated README