Further improvements to project lists UI
### Problem to solve
Based on gitlab-ce#51944.
- Can we find a way to show description on mobile screens but not overwhelm the screen with information?
- Is it confusing if we 'prioritise more relevant information' and hide some of 'less relevant' on smaller screens?
- How can we further improve the experience of looking for and exploring projects?
- ...
### Further details
### Proposal
Let's get more feedback on the new design and keep notes in this issue.
### What does success look like, and how can we measure that?
(If no way to measure success, link to an issue that will implement a way to measure this)
### Links / references
issue