Upload image instead of inserting image URL

[promise]

Proposed Functionality

Add the feature to upload a poster image rather than supplying a poster image URL when creating or editing a competition as crew.

Use Case

In recent years, popular free image hosting services and CDNs (like Imgur, Discord, GitHub) have implemented ways to avoid their sites being used for hosting in favor of other sites. The most used technique is appending a ?token=x.x.x at the end of the image URL where the token gives access to the link temporarily.

Because of this, for the user adding new competitions, it's hard to find a free hosting service online, and a more user-friendly approach would be to upload directly to UNICORN. It also minifies the risks of the external hosting service going offline.

Database Changes

• New model/field for the image

External Dependencies

None that I know of.