update tailwindcss version

Author: RobinMalfait

package.json

@@ -29,7 +29,7 @@
     "concurrently": "^5.3.0",
     "live-server": "^1.2.1",
     "postcss": "^8.1.7",
-    "tailwindcss": "next"
+    "tailwindcss": "^3.0.0-alpha.1"
   },
   "dependencies": {
     "mini-svg-data-uri": "^1.2.3"