Major revamp of the submissions dashboard

Just released a major update to the Submissions dashboard.

There's a big chart at the top of the page that shows how many submissions your form has received, split between spam and non-spam submissions, over the last 7, 30 or 90 days on a daily basis, or for the last 6 or 12 months on a monthly basis.

We've added paging to the submissions list, with a default of 25 submissions at a time, as well as the ability to sort the submissions by the date they were received.

And, lastly, we've improved the Inbox and Spam Folders we introduced in the last release by enabling you to move submissions between folders or to archive submissions.

Altogether, we think this makes managing submissions much easier!