Add 'bottom section' to idea (within Aha) layout

At present, you only have a top section option for the layout of ideas within Aha.

We use these fields for collecting a bunch of detail through the idea portal, but it's difficult to read within aha because on the details page it's all squished down the right hand side, and on the pop-our right page, half the page is wasted and no full screen view is available.