Upload/select full directories

[mzur]

It seems like it is now possible to select and upload complete directories with the browser API. I found this new feature in NextCloud. It uses the usual file select popup and then asks if I really want to upload the whole directory. In BIIGLE we can use this to create directories and files at once. Currently, users have to create "directories" in the file upload form manually and then fill them with individually selected files. The new API will make this much easier and more intuitive.