Fixed Update of Start Translation Workflow Issues

Fixed a bug in the start translation workflow window, which showed errors for dependent content items, even after all links to the problematic content items have been removed.

(CMS-21671)

Fixed Disposing of Uploaded Temp Files

When a blob is uploaded to Studio, it is converted to a temporary file, backing a temporary Blob object. This object/files is properly disposed/deleted now.

(CMS-21238)