Improve navigation on the leadership page

[slightlyoffbeat]

Description

Right now, the leadership page lists everyone all at once. We should improve our existing anchor links by looking into adding tabs or a side menu.

This deserves a better long-term solution, but here is my proposal for a short term solution (ignore placeholder copy):

Lets move forward with a side navigation for now. MJ will work with us to provide a recommendation on how to organize within this proposed solution.

To Do:

• [ ] Determine updated URL structure
• [ ] Determine what to show on default URL
• [ ] Determine how to best organize (to be delivered by MJ)