* Showcase: Update images
* Showcase: Remove sites that are not working, and have not been working since yesterday.
* Suspected no longer using docusaurus (please confirm)
* Revert "Showcase: Remove sites that are not working, and have not been working since yesterday."
This reverts commit c963f120e9.
* add notices
* test screen resolution
* all of them
Co-authored-by: Joshua Chen <sidachen2003@gmail.com>