feat: update styling

tailwind.config.cjs

@@ -1,7 +1,9 @@
 /** @type {import('tailwindcss').Config} */
 module.exports = {
   content: ['./src/**/*.{astro,html,js,jsx,md,mdx,svelte,ts,tsx,vue}', '*.{js,ts,jsx,tsx,mdx}'],
-  darkMode: 'class',
-  theme: {},
+  darkMode: ['class', '[data-theme="dark"]'],
+  theme: {
+      extend: {},
+    },
   plugins: [require('@tailwindcss/typography')],
 };