[Story of Your Layout] Visualize Flex children (#1332)
* Show actual size and properly size flex children
* Visualize Flex
Check in 2
* Refactor data models
* Properly scale visualization of flex children
* Tweak minor UIs
* Check in
* Add main/cross axis assets
* Fix calculation when elements share width/height
* Update assets and set max width for widget name
* Fix assets
* Fix minor bugs and UI cleanups
* Clean up code quality and refactor
* Change Dropdown content layout and minor clean ups
* Revert unintended changes
* Add tests and several clean ups
* Remove unintended files
* Turn off experimental flag and fix goldens
* Skip golden tests when it is not in Linux
Author
Albertus Angga Raharja