Feature request: Export workflow jsons and credentials as zip, ON WEB UI itself, not through CLI

It would be awesome to be able to export workflow jsons and credentials as zip, such as workflows-export-{currentdate}.zip and credentials-export-{currentdate}.zip, with a click of a button: Export all workflows on the web ui. Also, there should be Import workflow button, as zip/select many.json,… as well as import credentials button.

Please implement this, really appreciated!