update static assets

[lcjohnso]

Current behavior: The current app pulls static images (for logos, etc) via Wordpress upload URLs (e.g., https://chelseatroy.com/wp-content/uploads/2020/07/nasa-partner.png).

Desired behavior: Preference would be to add these images as static assets bundled with the app (e.g., in /static dir?), but also could move these to Zoo-hosted blob storage (e.g., https://static.zooniverse.org/assets/zooniverse-icon-web-black.png).

[camallen]

fwiw any assets being served from the static.zooniverse.org domain should be scoped to the origin host domain to avoid a clasing dumping ground folder

e.g. instead of putting the zooniverse-icon-web-black.png file in the root folder of assets on that blob storage container, instead put them to the theia.zooniverse.org folder to ensure we don't have clashing assets cascading to other domains.
The resulting URL would look like https://static.zooniverse.org/theia.zoonivese.org/zooniverse-icon-web-black.png