filesToSave Array or Object
@BDF32E9143B2CD5B, should filesToSave
be treated as an Array or as an Object?
https://gitlab.tugraz.at/dbp/web-components/toolkit/-/blob/master/packages/file-handling/src/dbp-file-handling-clipboard.js#L34 https://gitlab.tugraz.at/dbp/web-components/toolkit/-/blob/master/packages/file-handling/src/dbp-file-handling-clipboard.js#L65