Add an easy way to share Studio releases on the Marketplace

For now, Studio project releases are editable on the Marketplace but not searchable (i.e you must have the URL). It makes it difficult for a customer to share it and make it available for multilayer purpose.
Maybe we should add a "Share on the Marketplace" button on the Studio project releases page that will lead to the MP Edit page, or even better, let you choose directly the orgs you want to "share with" and do the job