Part of #10526 (without TS structures: interfaces, type aliases etc.)
Added lints checking for jsdocs presence (and their format) and generated stub with TODO for missing ones. Now only 344 docs are missing 🙃
# Important Notes
Many changes are just automated, but they are in the middle commit. So recommended way of reviewing is review `Add jsdoc to eslint config` for checking config changes, and then `Some of the missing documentation and fixes`.
This PR:
* removes much of logic related to building and packaging the gui1;
* made `./run gui` and `./run ide` work with the new gui;
* rename numerous references to the "gui2" or "new gui" in favor of simply "gui", same for "ide".
- 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.
