Label Import

Description

When creating a new project and going to the label tab, you can only create a new label or generate a default set of labels. It would be nice to be able to import labels from another project / namespace, so you don't have to copy & paste everything from existing projects.

Proposal

Add a button Import labels and a page that lets you choose a namespace / project, possibly a preview of the imported labels where you can choose which ones to import.