AI: Fixed prompt author prefix (now got name & mention)

Author: Ambratolm

bot/cogs/chat_cogs/ai_cog.py

@@ -455,7 +455,7 @@ async def create_prompt(
         # Process file attachments if message is provided
         if message:
             # Add author
-            text += f"{message.author.mention}:"
+            text += f"{message.author.display_name} ({message.author.mention}):"
 
             # Check for stickers first
             if message.stickers: