Scene state - Githubissues

Adds an option to update the scene's state dynamically, together with persistence and access controls.

[x] Define a schema for the scene's state
[x] Split public and private state
[x] Make public state editable via the setSceneState event
[x] Make an interface under /c to update the public state, update the QR code to link to it
[x] Show the current public state in that interface
[x] Make that interface use the correct fields automatically
[x] Show the actual current state in the state panel
[x] Persist the state to disk
[x] Keep persisting between deploys
[x] Sync state to UI (manually for now)
[x] Update from the controller
[x] Select fields in the controller, including editing options
[x] Types in the frame's config page
[x] Sanitize HTML in frame's control form

Out of scope:

FrameOS / frameos