Connect frontend to backend for filtering

[joshw2048]

Alright, now to tie this all together. On the front end, we want to issue a request to the backend when a user selects a filter. Essentially, a user should be able to make selections for filtering criteria, and that should be reflected in the call to the backend.

Acceptance criteria:

• When a user selects filtering criteria, such as work model and location, then clicks "go" (or whatever button it is), a call should be made to the modified endpoint reflecting those filtering criteria
• The URL should now reflect the filtered state, with query parameters tacked on the end (ie, instead of https://coopernu.vercel.app/roles, it should be like https://coopernu.vercel.app/roles?location=xyz&work-model=abc)