Qti error handle
handles bug reported in #259 (closed)
- certain images fail to upload correctly
- in the cases when an image didn't get uploaded to s3 and we only have a base64 string in question's wax content, convert the base64 into an image file and use that for the export (either word or QTI)
- handle error messages via a dialog when exporting from inside a list (partial list export)