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/components/examples/save-restore/Controls.vue

@@ -0,0 +1,40 @@
+<script setup>
+import { useVueFlow } from '@braks/vue-flow'
+
+const flowKey = 'example-flow'
+
+const { nodes, addNodes, setNodes, setEdges, instance, dimensions } = useVueFlow()
+
+const onSave = () => {
+  localStorage.setItem(flowKey, JSON.stringify(instance.value?.toObject()))
+}
+
+const onRestore = () => {
+  const flow = JSON.parse(localStorage.getItem(flowKey))
+
+  if (flow) {
+    const [x = 0, y = 0] = flow.position
+    setNodes(flow.nodes)
+    setEdges(flow.edges)
+    instance.value.setTransform({ x, y, zoom: flow.zoom || 0 })
+  }
+}
+
+const onAdd = () => {
+  const id = nodes.value.length + 1
+  const newNode = {
+    id: `random_node-${id}`,
+    label: `Node ${id}`,
+    position: { x: Math.random() * dimensions.value.width, y: Math.random() * dimensions.value.height },
+  }
+  addNodes([newNode])
+}
+</script>
+
+<template>
+  <div class="save__controls">
+    <button style="background-color: #33a6b8" @click="onSave">save</button>
+    <button style="background-color: #113285" @click="onRestore">restore</button>
+    <button style="background-color: #6F3381" @click="onAdd">add node</button>
+  </div>
+</template>