a lot of stuff so read the description pls and ty

-added Home link to nav bar
-made the reviews for each restaurant show up
-added average rating calculation and number of recommendations to the
restaurant page

in class as a group, we did:
-fixed the footer
-got the add review function working (i.e., actually sends the review to
the db)
-made all the restaurant divs in the homepage clickable to its
corresponding restaurant page