clean up academics page

[hyper-neutrino]

To clean up:

• we want to convert raw CSS to tailwind: we got rid of CSS files but there is still some inline styling, so for example, we want to convert style={{ paddingLeft: "4rem" }} to className="pl-16" (refer to https://www.creative-tim.com/twcomponents/cheatsheet/)
• some messy bits may have popped up during reformatting like extraneous {" "} instances — please remove those

[franklin611]

working on it