feat: add optional chaining to prevent types errors and add an example of helper lines (#1904)
* docs: code errors in "Updating Node Data" (#1900)
fix(docs): Example of fixing code errors in "Updating Node Data"
* fix: add optional chaining to prevent errors in link filtering
* feat: add an example of helper lines
* refactor: In the HelperLines example, replace the observer with dimensions
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Co-authored-by: Charles Lee <114982593+rookie-orange@users.noreply.github.com>
Co-authored-by: J <gongjie0422@163.com>
* docs: Animations
* docs: add confetti gun
* docs: update basic example on home page
* docs(deps): Add stackblitz sdk to deps
* chore: update yarn.lock
* docs: use vue repl
* docs: remove stackblitz sdk
* docs: basic repl example
* docs: use repl for examples/index.md (basic example)
* docs: pass ext to repl
* docs: add copy plugin
* docs: use import map instead of dynamic imports
* docs: use repl for custom node example
* docs: hide repl errors
* docs: use repl for custom connectionline example
* docs: use repl for edges example
* docs: exclude repl from ssr
* docs: use repl for nested example
* docs: use repl for stress example
* docs: rename customNode to custom-node
* docs: use repl for update-edge example
* docs: use repl for update-node example
* docs: use repl for validation example
* docs: use repl for save-restore example
* docs: scale down minimap in repl examples
* docs: use repl for dnd example
* docs: use repl for empty example
* docs: use repl for hidden example
* docs: use repl for interaction example
* docs: use repl for multi example
* docs: add pinia example with stackblitz
* docs: update basic example
* docs: update examples
* docs: remove transition from intro
* docs: update features
* update: README.md
* docs: scope css
