Simplified React Hooks | Simplified Server Setup | Enable React.StrictMode

[tantaman]

@jamesgpearce - since you're poking around the vite starter, these updates might be relevant to what you're doing.

tldr -- it's a simplification of all the user facing APIs to:

• open a db
• start sync
• run a custom sync server

as well as allowing users to use React.StrictMode

[tantaman]

This'll be merged once more test cases have been written for the new websocket server.

[jamesgpearce]

I rebased onto your recent changes. Didn't look too closely, but all seems to work ok!