Add support for rendering emojis in stories and remove hashtags

Install twemoji-parser and node-fetch, create a new EmojiRenderer service for handling emoji rendering on canvas using Twemoji, and update the text processing logic to remove hashtags instead of emojis in shared/emoji.ts.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: ae4037a0-2a6f-4530-9bac-79b543286bda
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
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shared/emoji.ts

@@ -1,16 +1,10 @@
-import emojiRegex from 'emoji-regex';
-
-// Cached regex instance for performance
-const emojiPattern = emojiRegex();
-
 /**
- * Removes emojis from text while preserving other Unicode characters
- * Uses the emoji-regex package which correctly identifies emojis without
- * removing legitimate astral-plane characters (CJK Extension B, etc.)
+ * Removes hashtags from text while preserving emojis and other content
+ * Matches patterns like #hashtag, #HashTag123, etc.
  */
-export function removeEmojis(text: string): string {
+export function removeHashtags(text: string): string {
   return text
-    .replace(emojiPattern, '')
+    .replace(/#[\w\u00C0-\u017F]+/g, '') // Remove hashtags (supports accented characters)
     .replace(/\s+/g, ' ') // Normalize whitespace
     .trim();
 }