Refactor websocket system to Yjs

[snide]

So many things:

• Rewrites the websocket layer to use y.js. This provides:
  • A TS document layer
  • The ability to handle conflicts in editing
  • Editors across tabs now stay in sync
• Moved the active scene to the party level, and changes the playfield route to /[party-name]/play
• The save system isn't so eager now. It must be explicitely called rather than reacting to stageProps
• Images now store a version parameter with their location ?v=1. This avoids the cache busting I was doing before with timestamps and should prevent a lot of flashes when data hydrates.
• The scene list is now delivered across the y.js layer. This means that changes to the scene order or content (including thumbnail generation) will update across editors.
• There are now proper safeguards for removing or reordering scenes when it is the one you have selected.
• There are new checks for the websocket layer to check against consistancy vs. the database. These fire intermittedly but also when you on focus inactive editors.
• Removed all stageProps binding in favor of direct functions to update state.
• Added a selector for game sessions in the layout.
• Made the import and duplicate scene systems more robust to match the new versioning system
• Adds a documentation folder at /docs which can store some architecture docs
• The scene list now properly handles time when you change the order of the currently selected file.
• Added devLog functions to only broadcast console logs in dev mode.

Bugs to fix:

• Need to generate a thumbnail for newly created scenes. This likely needs to generate images that are based off the example, or the uploaded image and then give it a proper location with a version
• Need some code cleanup

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