Allow manual control of thumbnails in Primo records
Primo uses Syndetics to supply thumbnails of book covers for records within Primo. However, when Syndetics provides an incorrect image based on their data, it requires a ticket and often several weeks to correct it. In contrast, some records have no thumbnail at all and use a default gray book icon. Libraries should have the option to use this default icon when Syndetics is providing an incorrect image, or to upload and use local images in cases of records that have no images in Syndetics (for example, with archival and special collection books that are old enough that they have no ISBNs or commonly known covers available).