pasteMimeTypes
Mime types that {@linkcode DocumentPasteEditProvider.provideDocumentPasteEdits provideDocumentPasteEdits} should be invoked for.
This can either be an exact mime type such as image/png, or a wildcard pattern such as image/*.
Use text/uri-list for resources dropped from the explorer or other tree views in the workbench.
Use files to indicate that the provider should be invoked if any files} are present in the {@linkcode DataTransfer. Note that {@linkcode DataTransferFile} entries are only created when pasting content from outside the editor, such as from the operating system.