feat(AvatarGroup): new component (#71)

Co-authored-by: Romain Hamel <romain@boilr.io>

src/runtime/composables/useAvatarGroup.ts

@@ -0,0 +1,12 @@
+import { inject, provide, computed, type ComputedRef } from 'vue'
+import type { AvatarGroupProps } from '#ui/types'
+
+export function useAvatarGroup(props: { size: AvatarGroupProps['size'] }) {
+  const injectedSize = inject<ComputedRef<AvatarGroupProps['size']> | undefined>('avatar-size', undefined)
+  const size = computed(() => props.size ?? injectedSize?.value)
+  provide('avatar-size', size)
+
+  return {
+    size
+  }
+}