Change grab cursors:
- Node has grab/grabbed icons for only halo and icon.
Fix bugs:
- Empty part of top bar no longer blocks mouse events.
- JSON viz: Clickable parts of inline elements now use pointer cursor when hovered.
- Doc panel breadcrumbs: Icon can be clicked (behavior now consistent with cursor shown).
https://github.com/enso-org/enso/assets/1047859/3e48a6c1-3f43-497f-82ad-eb787e9c9643Closes#10166.
# Important Notes
- New global `clickable` class replaces `cursor: pointer`; the class can be applied closer to the event handler.
- Refactor: Extracted `GraphNode` output port logic to a new component.
- Synchronize Y.Js clients by AST (implements #8237).
- Before committing an edit, insert any parentheses-nodes needed for the concrete syntax to reflect tree structure (fixes#8884).
- Move `externalId` and all node metadata into a Y.Map owned by each `Ast`. This allows including metadata changes in an edit, enables Y.Js merging of changes to different metadata fields, and will enable the use of Y.Js objects in metadata. (Implements #8804.)
### Important Notes
- Metadata is now set and retrieved through accessors on the `Ast` objects.
- Since some metadata edits need to take effect in real time (e.g. node dragging), new lower-overhead APIs (`commitDirect`, `skipTreeRepair`) are provided for careful use in certain cases.
- The client is now bundled as ESM.
- The build script cleans up git-untracked generated files in an outdated location, which fixes lint errors related to `src/generated` that may occur when switching branches.
