chore: Update Tailwind CSS configuration and dependencies (#5)

- Replaced Tailwind CSS configuration in postcss.config.js to use '@tailwindcss/postcss'.
- Updated package.json to include '@tailwindcss/postcss' and upgraded 'tailwindcss' to version 4.1.12.
- Removed the obsolete tailwind.config.ts file.

Author: FerMPY

package.json

@@ -27,6 +27,7 @@
   "devDependencies": {
     "@eslint-react/eslint-plugin": "^1.52.6",
     "@eslint/js": "^9.34.0",
+    "@tailwindcss/postcss": "^4.1.12",
     "@tanstack/eslint-plugin-query": "^5.83.1",
     "@tanstack/eslint-plugin-router": "^1.131.2",
     "@tanstack/react-query-devtools": "^5.85.5",
@@ -41,7 +42,6 @@
     "@types/react": "^19.1.11",
     "@types/react-dom": "^19.1.8",
     "@vitejs/plugin-react": "^5.0.1",
-    "autoprefixer": "^10.4.21",
     "babel-plugin-react-compiler": "19.1.0-rc.2",
     "eslint": "^9.34.0",
     "eslint-config-prettier": "^10.1.8",
@@ -59,7 +59,7 @@
     "prettier": "3.6.2",
     "prettier-plugin-tailwindcss": "^0.6.14",
     "sort-package-json": "^3.4.0",
-    "tailwindcss": "^3.4.17",
+    "tailwindcss": "^4.1.12",
     "typescript": "~5.8.0",
     "typescript-eslint": "^8.41.0",
     "vite": "^7.1.3",