animals is broken unless api key is set

[the-tuxedo-cat]

TL;DR random.cat's API returns a 503 for some reason, and unless an API key is set for thecatapi.com, the command just flat out breaks. Created a fork to fix this by just flat out disabling the default meow command like so:

# async with self.bot.session.get("http://aws.random.cat/meow") as r:
# cat = (await r.json())["file"]
embed = discord.Embed(title=":x: API Broken")
embed.description("The default cat API is down. In the meantime, use {prefix}help meow for more info.")
#embed.set_image(url=cat)

Can be viewed in my fork here.