Uploads (files and images)

[RitaOak]

Right now there is no limit to file sizes, which can result in a problem soon once we start experimenting with uploads.

On platforms such as Discord, there is a set max upload size of 8MB for free accounts - which is deemed reasonable in context. However, the OAE and Discord have a substantially different community. For the OAE, we're not only looking at image uploads, but also pdfs, docs, etc, which might justify upping the general max size.

Perhaps we could try to differentiate between the different kinds of uploads:

1. avatars (about 2MB)
2. general uploads (somewhere between 10MB to 30MB)

This will still require more research, but it's a step in the right direction.