Allow user to select an existing personal collection to move to a newly-created organization, instead of only giving the choice to create a brand new collection.
Right now, when creating an account through the Team flow, we still create a personal collection on the account that shares its alias with the user's username. Thus if I sign up with acme as my username, the collection name acme will already be taken when I'm prompted to create my Team's first blog. This aims to work around that issue.
On the screen that prompts the user to create a blog, offer a dropdown list of personal blogs to choose from, or the current field to create a new one.
If user selects a personal blog, move it to the team (transfer ownership from user to org).