update tailwind config

Author: erquhart

example/postcss.config.js

@@ -1,6 +1,5 @@
 export default {
   plugins: {
-    tailwindcss: {},
-    autoprefixer: {},
+    "@tailwindcss/postcss": {},
   },
 };

example/src/index.css

@@ -1,6 +1,5 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
+@import "tailwindcss";
+@config "../tailwind.config.js";
 
 /* To change the theme colors, change the values below
   or use the "Copy code" button at https://ui.shadcn.com/themes */
@@ -77,8 +76,6 @@
   }
 }
 
-
-
 @layer base {
   * {
     @apply border-border outline-ring/50;