[#69562828] Fixes unfiltering workfile list

 - After setting a worfile_type filter then reselecting all files, the file_type query param
   is '' when fetching. Fix the workfile fetching logic to cosider blank file_type queries
   as no filter.
[Fixes #70182402] Disable ImageUpload submit on paste

 - User can inadvertantly change a profile/workspace image when pasting information
   in the presence of an ImageUpload view.
 - via Aridhia Informatics