Conduct expanded UX review and gather community feedback

We should conduct a formal UX review of cncf.io, interviewing those who weighed in initially during [the UX review 2 years ago](https://docs.google.com/presentation/d/1_FXV27aW4CLXUJfh8pFrgCAnVgc3POHb0b4qfaqx5C0/edit#slide=id.gb04a7108f2_0_36) to make sure we are moving in the right direction and to gather any new requests. We should also expand this set of stakeholders, who were mostly CNCF staff, to people more peripheral in the community and those who are known to be critical. We should make sure all user types are represented including disabled people.

We should setup a system to gather this feedback in an ongoing way so that we can make sure we continue to serve the CNCF community as well as possible.