Clarify parameter name for users, correct id usage for autofills.

cogs/commands/message_management.py

@@ -2,7 +2,7 @@
 Commands for managing/displaying the highscores messages.
 """
 
-from typing import Optional, Union
+from typing import Optional
 
 import nextcord
 from nextcord.ext import commands
@@ -115,7 +115,7 @@ class MessageManagementCog(commands.Cog, name="Message Management"):
     async def refresh_group(
         self,
         interaction: nextcord.Interaction,
-        group_id: str = nextcord.SlashOption(description="Name of table.", required=True),
+        group_id: str = nextcord.SlashOption(name="Group", description="Name of Group.", required=True),
     ) -> None:
         """
         Refreshes a table given by user.