Track public dir

tailwind.config.js

···
 /** @type {import('tailwindcss').Config} */
 module.exports = {
-  content: ["./app/**/*.{js,ts,jsx,tsx,mdx}"],
+  content: ["./{app,public}/**/*.{js,ts,jsx,tsx,md,mdx}"],
   theme: {
     extend: {
       colors: {},