use send_help in the cogs command group

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

bot/src/cogs/dev_tools.py

@@ -107,7 +107,7 @@ class DevTools(commands.Cog):
         """
 
         if not ctx.invoked_subcommand:
-            await ctx.reply_help(ctx.command)
+            await ctx.send_help(ctx.command)
 
     @cogs.command(name="unload", description="Avslutt en cog")
     async def cogs_unload(self, ctx: commands.Context, cog: str):