Image Customizations

[ksigWyatt]

Story

As a user I want to be able to configure all the images in the application and indicate what aspect ratio I would like them to have in the application.

AC

• [ ] Users will need to supply a valid URI to an image that can be displayed within the application. Only JPG and PNG images can be used.
• [ ] Image links need to be validated as properly formed absolute resource links.
• [ ] Create a new config key for these resources
• [ ] Images can be of any size technically but we should try to make sure that they are < 1MB in size (at least a note in the docs would make this more clear)
• [ ] These configs need to be added to the persistent cache

[ksigWyatt]

Closing this because we don't need to support this if we change the design