fix minor issue

- when the channel was empty, could not retrieve and create a proper context

Co-Authored-By: Aluerie ❤#6524 <[email protected]>

cogs/help.py

@@ -262,18 +262,9 @@ def help_custom(self) -> tuple[str, str, str]:
     @bot_has_permissions(send_messages=True)
     @app_commands.command(name="help", description="Help command.")
     @app_commands.checks.cooldown(1, 15.0, key=lambda i: (i.guild_id, i.user.id))
-    async def help(self, interaction: discord.Interaction):
-        async for hijacked_message in interaction.channel.history(limit=1):
-            pass
-        hijacked_message.author = interaction.user
-        await commands.Context(
-            message = hijacked_message,
-            bot = self.bot,
-            view = None,
-            prefix = f"{self.bot.user.mention} ",
-            command_failed = False,
-            interaction = interaction,
-        ).send_help()
+    async def help(self, interaction: discord.Interaction[DiscordBot]):
+        context = await commands.Context.from_interaction(interaction)
+        await context.send_help()