add Tailwind and code cleanup(WIP)

tailwind.config.js

@@ -0,0 +1,15 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: [
+    "./app/**/*.{js,ts,jsx,tsx,mdx}", // Note the addition of the `app` directory.
+    "./pages/**/*.{js,ts,jsx,tsx,mdx}",
+    "./components/**/*.{js,ts,jsx,tsx,mdx}",
+
+    // Or if using `src` directory:
+    "./src/**/*.{js,ts,jsx,tsx,mdx}",
+  ],
+  theme: {
+    extend: {},
+  },
+  plugins: [],
+};