Closes#1789
### Changes
- Converts stylesheet in js to css now that it doesn't use any runtime
values
- Removes fixed height on QA container, and instead sets a min height
- Applies `contain: size` to page list & tab content so they don't cause
the QA container to stretch
- Also updates instances of `h-{n} w-{n}` to `size-{n}`
- Removes leftover outlines on text and resource comparison areas from
early QA prototyping
