tweak ui

packages/frontend/src/components/global/MkStickyContainer.vue

@@ -14,6 +14,7 @@
 
 <script lang="ts" setup>
 import { onMounted, onUnmounted, provide, inject, Ref, ref, watch } from 'vue';
+import { $$ } from 'vue/macros';
 import { CURRENT_STICKY_BOTTOM, CURRENT_STICKY_TOP } from '@/const';
 
 const rootEl = $shallowRef<HTMLElement>();
@@ -83,8 +84,8 @@ onMounted(() => {
 onUnmounted(() => {
 	observer.disconnect();
 });
+
+defineExpose({
+	rootEl: $$(rootEl),
+});
 </script>
-
-<style lang="scss" module>
-
-</style>