New page layout

[Jeremy-Walton]

Task

Fixess #303

Why?

Easier layouts that are more flexible and fix some of the scrolling issues faced on some of our projects.

What Changed

• Add new layout
• Add example pages for new layouts
• Update documentation
• Fix workspace suggested extension

Quality Assurance

• Have you tagged the PR with the correct labels?
• Have you validated the changes?
  • Have you run linters? (yarn sanity-check)
  • Have you run prettier?
  • Have you tried building the css?
  • Have you tried building storybook?
• [ ] Have you updated any usage of changed tokens?
• [ ] Did you add a component?
  • [ ] Have you added it to the dependency graph?
  • [ ] Have you added it to the docs?
• Did you update a component?
  • [ ] Have you updated the dependency graph?
  • Have you updated the docs?
• Do you need to update the package version? (yes, bumped to v2.3.0)

Screenshots