feat: (description) move invite to make all general commands ep and more

Moved the invite command from general to owner cogs and updated help command category mapping accordingly. Improved ephemeral response handling in botinfo, ping, and serverinfo commands. Enhanced help command to avoid duplicate command listings and include application commands. Cleaned up serverinfo code and added guild-only enforcement.

cogs/general/botinfo.py

@@ -32,7 +32,7 @@ class BotInfo(commands.Cog, name="botinfo"):
             value=f"/ (Slash Commands) or {self.bot.bot_prefix} for normal commands",
             inline=False,
         )
-        if context.interaction:
+        if getattr(context, "interaction", None):
             await context.interaction.response.send_message(embed=embed, ephemeral=True)
         else:
             await context.send(embed=embed)