Feat: Chat (#15686)

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* Update types.ts

* Create 1742203321812-chat.js

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* Update room.vue

* Update home.vue

* Update home.vue

* Update ja-JP.yml

* Update index.d.ts

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* Update CHANGELOG.md

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* Update home.vue

* clean up

* Update misskey-js.api.md

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* lint fixes

* lint

* Update UserEntityService.ts

* search

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* 🎨

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* Update home.ownedRooms.vue

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* Update CHANGELOG.md

* Update style.scss

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* improve performance

* improve performance

* Update timeline.test.ts

packages/frontend/src/pages/settings/sounds.vue

@@ -85,6 +85,7 @@ const sounds = ref<Record<OperationType, Ref<SoundStore>>>({
 	noteMy: prefer.r['sound.on.noteMy'],
 	notification: prefer.r['sound.on.notification'],
 	reaction: prefer.r['sound.on.reaction'],
+	chatMessage: prefer.r['sound.on.chatMessage'],
 });
 
 function getSoundTypeName(f: SoundType): string {