Add Tabs Or Carousel

[Technickel-Dev]

The Threshold Preview and Contour Preview are extra pieces of information outlining the steps to the Removed Background Preview.

Rather than have them displayed at the bottom of the page, it would be nice to save space and have them displayed as secondary elements to the Removed Background Preview through tabs or a carousel.

[bobonlan]

I believe I can get this done fairly quickly!

[Technickel-Dev]

Hey @bobonlan, it's been some time now so going to un-assign you in case someone else wants to give it a try. If you're still interested feel free to PR something!