Do not show download button for Zarr assets referenced with HTTP #758
Description
STAC assets representing Zarr data have references to a Zarr store, which is usually represented by a directory or an object store prefix in the storage system. When s3:// links are used, the Bowser shows a "Copy URL for S3" button to copy the url. In case of https:// links, a "Download" button is shown instead.
While the "Copy URL for S3" works fine, the "Download" leads to an error due to the layout of Zarr data on the storage (directory/object store prefix).
The proposal here is to hide the Download button for assets of type application/vnd+zarr which are referenced by HTTP links. Maybe this could be generalized by maintaining a (configurable) list of 'not-downloadable' media types which is considered before rendering the Download button...