remove showOn attr for EmptyTips

src/components/empty-tips/index.vue

@@ -1,5 +1,5 @@
 <template>
-	<div v-show="showOn" class="tui-empty-tips gray" v-text="content"></div>
+	<div class="tui-empty-tips gray" v-text="content"></div>
 </template>
 
 <script lang="ts" setup>
@@ -9,10 +9,8 @@ defineOptions({
 });
 
 withDefaults(defineProps<{
-	showOn: boolean;
 	content?: string,
 }>(), {
-	showOn: true,
 	content: "没有更多数据"
 });
 </script>