Google Inbox was supposed to be the future of Gmail. It offered more advanced filtering, snoozing of messages, and more visual organization to the Gmail inbox. As of lately, Inbox users knew that the app was going kaput, but it wasn't until recently that users are now seeing a more specific shutdown date. If you head to the Inbox landing page: Google.com/inbox, you'll be greeted with a message that says "Inbox is signing off". Find your favorite features in the new Gmail." Google is going to shut down Inbox at the end of March, and a countdown from the Inbox app ends on April 2. We see the...