Moved waifu pics to a separate module and improved shutdown handling.

cogs/admin.py

@@ -11,6 +11,7 @@ from libbot.sync import config_get as sync_config_get
 from enums.colors import Color
 from modules.scheduled import scheduler
 from modules.utils_sync import guild_name
+from modules.waifu_pics import waifu_pics
 
 logger = logging.getLogger(__name__)
 
@@ -186,6 +187,7 @@ class Admin(commands.Cog):
             )
             scheduler.shutdown()
             await self.client.close()
+            await waifu_pics._client_session.close()
             sys.exit()
 
         logging.warning(