Make default enabled False

Made default enabled False, this is because with a decent amount of users this skyrockets your CPU, so making this default off, only servers that actually want it will be enabled, thus reducing CPU usage.

lseen/lseen.py

@@ -24,7 +24,7 @@ class LastSeen(Cog):
         self.bot = bot
         self.config = Config.get_conf(self, identifier=9811198108111121, force_registration=True)
         default_global = {}
-        default_guild = {"enabled": True}
+        default_guild = {"enabled": False}
         default_member = {"seen": None}
 
         self.config.register_global(**default_global)