⚡️ perf(tailwind): add default tailwind css

tailwind.config.mjs

@@ -0,0 +1,8 @@
+/** @type {import('tailwindcss').Config} */
+export default {
+	content: ['./src/**/*.{astro,html,js,jsx,md,mdx,svelte,ts,tsx,vue}'],
+	theme: {
+		extend: {},
+	},
+	plugins: [],
+}