perf: reduce the number of icon component instances

packages/@core/shared/iconify/src/create-icon.ts

@@ -0,0 +1,9 @@
+import { h } from 'vue';
+
+import { Icon } from '@iconify/vue';
+
+function createIcon(icon: string) {
+  return h(Icon, { icon });
+}
+
+export { createIcon };