Upgrade astro and tailwind

Author: darashi

astro.config.mjs

@@ -1,11 +1,14 @@
 import { defineConfig } from "astro/config";
 
-import tailwind from "@astrojs/tailwind";
 import react from "@astrojs/react";
+import tailwindcss from "@tailwindcss/vite";
 
 export default defineConfig({
   site: "https://darashi.github.io",
   base: "/renkyu-maker",
 
-  integrations: [tailwind(), react()],
+  integrations: [react()],
+  vite: {
+    plugins: [tailwindcss()],
+  },
 });