Centralize all buttons in a Buttons module

[ghost]

Find all instances of buttons on the site and define a few general button components. Refactor existing components which do not already use tailwind component button to make use of tailwind component.

[ghost]

Create a follow-up issue to create more micro-components for all elements in the tailwindui Figma kit which aren't already represented by a utility class.

[agarwal]

I think we should prioritize this. I feel we're now facing too much churn. Creating good reusable components at this point would allow us to implement pages more correctly right away, avoiding a later refactoring.