Create Collaboration/Project Search view

[no-stack-dub-sack]

The view for this tab should as closely emulate the Mentorship tab as possible, for consistency's sake.

We can reuse several Semantic-UI elements to help with this.

Some other things to consider:

• Default View: if there are not many projects to search through right now, do we show them all when view first loads?
• What should the UI look like to indicate who the owner of the repo/project is?