feat: extend font family w/ desired font: inter

[Ademsk1]

Fixes #60
imports Inter font family and designates it as the default font

[ergusto]

See comment but feel free to merge

[ergusto]

This is definitely a personal opinion thing and a very, VERY nitpicky/minor point, but in general I think it looks neater and is more readable to leave an empty newline between imports and the rest of the file.

Like:

/** @type {import('tailwindcss').Config} */
import colors from './src/colors'
import defaultTheme from 'tailwindcss/defaultTheme'

module.exports = {
  content: ['./src/**/*.tsx'],

Approving anyway though so up to you if you want to leave it as is or update it.