chore: add changeset

.changeset/healthy-houses-drum.md

@@ -0,0 +1,28 @@
+---
+'vueflow': major
+'@vue-flow/additional-components': patch
+'@vue-flow/core': patch
+---
+
+# What's changed?
+
+- Add `vueflow` pkg that exports all features
+
+```vue
+<script setup>
+// `vueflow` pkg exports all features, i.e. core + additional components
+import { VueFlow, Background, MiniMap, Controls } from 'vueflow'
+</script>
+
+<template>
+  <VueFlow>
+    <Background />
+    <MiniMap />
+    <Controls />
+  </VueFlow>
+</template>
+```
+
+### Chores
+- Rename `core` pkg directory to `core` from `vue-flow`
+- Rename bundle outputs