Revert "Fallback to Tailwind V3, I had to bump a major version"

This reverts commit db7ea8b.

Author: tonysm

config/tailwindcss.php

@@ -39,5 +39,5 @@
      | @see https://github.com/tailwindlabs/tailwindcss/releases to know the version availables.
      |
      */
-    'version' => env('TAILWINDCSS_CLI_VERSION', 'v3.4.17'),
+    'version' => env('TAILWINDCSS_CLI_VERSION', 'v4.0.0'),
 ];

src/Commands/InstallCommand.php

@@ -45,8 +45,8 @@ protected function phpBinary()
     private function ensureTailwindConfigExists()
     {
         $this->copyStubToApp(
-            stub: __DIR__ . '/../../stubs/tailwind.config.js',
-            to: base_path('tailwind.config.js'),
+            stub: __DIR__ . '/../../stubs/postcss.config.js',
+            to: base_path('postcss.config.js'),
         );
 
         if (! File::exists($appCssFilePath = resource_path('css/app.css')) || empty(trim(File::get($appCssFilePath))) || $this->mainCssIsDefault($appCssFilePath)) {

stubs/postcss.config.js

@@ -0,0 +1,5 @@
+export default {
+    plugins: {
+        "@tailwindcss/postcss": {},
+    },
+};

stubs/resources/css/app.css

@@ -1,4 +1,2 @@
-@import "tailwindcss/base";
-@import "tailwindcss/components";
-@import "tailwindcss/utilities";
+@import "tailwindcss";