This ticket sits in between #401 and #402, and is about exposing a functionality (if that's not there already, hidden and unused ) to turn Notes into static HTML blobs. This is useful for two purposes:

1. When publishing a Note, we should turn the note into some sort of HTML blob, so that the node is not modifiable anymore, but it's still shareable;
2. When transferring notes in the context of #403, we should probably transfer an HTML blob, unless there is a way to directly query the writeframe service and transfer the content over.

Both solutions should be explored.