feat(frontend): chat column

Resolve #15830

packages/frontend/src/ui/deck/chat-column.vue

@@ -0,0 +1,27 @@
+<!--
+SPDX-FileCopyrightText: syuilo and misskey-project
+SPDX-License-Identifier: AGPL-3.0-only
+-->
+
+<template>
+<XColumn :column="column" :isStacked="isStacked">
+	<template #header><i class="ti ti-messages" style="margin-right: 8px;"></i>{{ column.name || i18n.ts._deck._columns.chat }}</template>
+
+	<div style="padding: 8px;">
+		<MkChatHistories/>
+	</div>
+</XColumn>
+</template>
+
+<script lang="ts" setup>
+import { ref } from 'vue';
+import { i18n } from '../../i18n.js';
+import XColumn from './column.vue';
+import type { Column } from '@/deck.js';
+import MkChatHistories from '@/components/MkChatHistories.vue';
+
+defineProps<{
+	column: Column;
+	isStacked: boolean;
+}>();
+</script>