Add a service for shortening URLs
Add a method to the URL shortener service for saving a shortened URL for a given bookmark
Shorten URL after a bookmark is created
Display shortened URL
Add functionality for pulling in the HTML for a given URL and extracting page title and maybe other metadata in the future
Fetch title for the bookmark after it has been created
Only save the bookmark if the title has a non-empty string
Fix a minor regression in the tests by stubbing out the handle_bookmark_created method
Add a test to check that the handle_bookmark_created method is called after a bookmark is created
Display title