Trick challenge

[dylan-plummer]

Allow users to challenge each other to tricks and have the option of proving it with a video

[swantzter]

I like this idea, but I was thinking, if we allow them to upload a video to the firebase storage as proof we might have to limit the time it can be stored as we only have 5GB, I could build a crobjob for that so it cleans up every X if the file is older than Y, but initially we can probably have Y as a quite big number?

We could also start utilizing notifications more for this like "X has completed your challenge" etc?