Move selections to a new Vue component so that they don't interfere with clicking on edges.
https://github.com/enso-org/enso/assets/1047859/190006df-1402-4a5f-9117-f43788fa4187
# Important Notes
- The new `GraphNodeSelection` components are drawn in a `GraphNodeSelections` container. They are created by the `GraphNode`s and teleported so that the node can set properties directly.
- Improved performance by batching simulatenous node edits, including metadata updates when dragging many selected nodes together.
- Updated Vue to new version, allowing us to use `defineModel`.
- Fixed#9161
- Unified all handling of auto-blur by making `useAutoBlur` cheap to register - all logic goes through a single window event handler.
- Combined all `ResizeObserver`s into one.
- Fixed the behaviour of repeated toast messages. Now only the latest compilation status is visible at any given time, and the errors disappear once compilation passes.
- Actually fixed broken interaction of node and visualization widths. There no longer is a style feedback loop and the visible node backdrop width no longer jumps or randomly fails to update.
Fixes#9182
Now we are careful when to handle events - before or after updating intersected set.
Added general E2E and detailed unit tests for selecting.
Also discovered, that sometimes the test are running while nodes are not yet in right positions. Added an instruction ensuring the position is right.
