Static Emojis for Non-nitro users

Once a server is boosted to level 2, allow for non-nitro users to be able to use animated emojis, with the catch that the emojis are stuck on the first frame of animation and are just static.

This will allow free users to be able to access more of the emoji libraries available, whilst still encouraging them to purchase nitro in order to have these emojis animated. It also keeps the advantage that nitro users have so they don't feel like free users are getting too much.