Simple Yjs wiki block editing integration

[micahscopes]

see #12

[micahscopes]

@sbazerque this needs some joint thinking cap time. It feels more stable but I'm not convinced that it is!

I'd like to merge it but it could disrupt existing content if we're not careful.

[sbazerque]

I propose we have an open meeting like last time, but specifically to analyze this issue.

I feel the work you've done combined with a MVR and some run-of-the-mill string merging may get us to our first working version :-)

[micahscopes]

Sounds great!