refactor(frontend): use PageWithHeader instead of MkStickyContainer+MkPageHeader combination

packages/frontend/src/pages/antenna-timeline.vue

@@ -4,8 +4,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<MkStickyContainer>
-	<template #header><MkPageHeader :actions="headerActions" :tabs="headerTabs"/></template>
+<PageWithHeader :actions="headerActions" :tabs="headerTabs">
 	<MkSpacer :contentMax="800">
 		<div ref="rootEl">
 			<div v-if="queue > 0" :class="$style.new"><button class="_buttonPrimary" :class="$style.newButton" @click="top()">{{ i18n.ts.newNoteRecived }}</button></div>
@@ -20,7 +19,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			</div>
 		</div>
 	</MkSpacer>
-</MkStickyContainer>
+</PageWithHeader>
 </template>
 
 <script lang="ts" setup>