add BigFan joke

src/kwaylon/jokes/jokes.py

@@ -158,3 +158,11 @@ class GoodBot(base.Joke):
     async def respond(self, message: Message, client: Client, match: re.Match):
         if helpers.valid_word(match.group(1)):
             await message.add_reaction(utils.get(client.emojis, name='kaylon'))
+            
+
+class BigFan(base.GifJoke):
+    url = 'https://c.tenor.com/qgrHA6RFg4EAAAAC/electric-fan-wind.gif'
+
+    @property
+    def regex(self) -> re.Pattern:
+        return re.compile('big fan', re.IGNORECASE)