Catalog: Support searching for users

[hojberg]

Problem

The catalog doesn't feature all projects, so we'd want a way to find users to list projects they own.

Solution

Add user search support to the catalog and a user icon.

Caveats/Notes

This being called the "catalog" page is making less sense now that you can search things that aren't in the catalog. Long term this should perhaps be renamed to "FrontPage".

[pchiusano]

Can we see some screen shots / videos? :)

[hojberg]

@pchiusano

[pchiusano]

nice!