docs: replace codesandbox embed with repl (#122)

* 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

docs/src/examples/pinia.md

@@ -0,0 +1,15 @@
+---
+pageClass: examples
+
+---
+
+# Pinia
+
+Using your existing storage implementation is not an issue. 
+You can store your elements in whatever store you're already using, mutate them there and pass the result to Vue Flow.
+
+In this example we use [pinia](https://pinia.vuejs.org/) to store our elements, update their positions and toggle classes.
+
+<div class="mt-6">
+  <PiniaExample />
+</div>