feat(frontend): chat column

Resolve #15830

packages/frontend/src/ui/deck.vue

@@ -97,6 +97,7 @@ import XWidgetsColumn from '@/ui/deck/widgets-column.vue';
 import XMentionsColumn from '@/ui/deck/mentions-column.vue';
 import XDirectColumn from '@/ui/deck/direct-column.vue';
 import XRoleTimelineColumn from '@/ui/deck/role-timeline-column.vue';
+import XChatColumn from '@/ui/deck/chat-column.vue';
 import { mainRouter } from '@/router.js';
 import { columns, layout, columnTypes, switchProfileMenu, addColumn as addColumnToStore, deleteProfile as deleteProfile_ } from '@/deck.js';
 
@@ -114,6 +115,7 @@ const columnComponents = {
 	mentions: XMentionsColumn,
 	direct: XDirectColumn,
 	roleTimeline: XRoleTimelineColumn,
+	chat: XChatColumn,
 };
 
 mainRouter.navHook = (path, flag): boolean => {

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>