Write V2 'Layout' first week experience page

[ericwindmill]

Page URL

https://docs.flutter.dev/get-started/fwe/layout

Page source

No response

Describe the problem

The current page is a list a links, which was the goal for V1 of FWE. The goal of V2 is to have more of the concepts are explained on the page directly.

Expected fix

In order to get to V2, the page should look more like the State Management or Caching FWE pages, in which the concepts are explained, with code excerpts, on the page directly.

Additional context

No response

I would like to fix this problem.

• [ ] I will try and fix this problem on docs.flutter.dev.