feat(eventlog): Add eventlog setting.

Also refactors the GeneralSettings to use the new style.

src/core/lion_guild.py

@@ -93,3 +93,12 @@ class LionGuild(Timezoned):
         """
         if self.data.name != guild.name:
             await self.data.update(name=guild.name)
+    
+    async def _event_log(self, ...):
+        ...
+
+    def event_log(self, **kwargs):
+        asyncio.create_task(self._event_log(**kwargs), name='event-log')
+
+    def error_log(self, ...):
+        ...