feat: Add emoji and alot of other fixes

toju-app/src/app/domains/direct-message/feature/dm-message/dm-message.component.ts

@@ -11,6 +11,7 @@ import {
   lucideClock3
 } from '@ng-icons/lucide';
 import { ChatMessageMarkdownComponent } from '../../../chat';
+import { isSingleUnicodeEmojiOnlyMessage } from '../../../custom-emoji';
 import type { DirectMessage } from '../../domain/models/direct-message.model';
 
 const RICH_MARKDOWN_PATTERNS = [
@@ -40,7 +41,8 @@ export class DmMessageComponent {
   readonly isOutgoing = computed(() => this.message().senderId === this.currentUserId());
 
   requiresRichMarkdown(content: string): boolean {
-    return RICH_MARKDOWN_PATTERNS.some((pattern) => pattern.test(content));
+    return isSingleUnicodeEmojiOnlyMessage(content)
+      || RICH_MARKDOWN_PATTERNS.some((pattern) => pattern.test(content));
   }
 
   statusIcon(status: DirectMessage['status']): string {