fix(admin-ui): Resolve tailwindcss/nesting correctly (#3404)

* attempt resolving tailwind nesting

* fix import of tailwindcss/nesting plugin

* trigger pipeline

* trigger pipeline

---------

Co-authored-by: Oliver Windall Juhl <59018053+olivermrbl@users.noreply.github.com>

packages/admin-ui/ui/postcss.config.js

@@ -1,9 +1,11 @@
 const path = require("path")
 
 module.exports = {
-  plugins: {
-    "tailwindcss/nesting": {},
-    tailwindcss: { config: path.join(__dirname, "tailwind.config.js") },
-    autoprefixer: {},
-  },
+  plugins: [
+    require("tailwindcss")({
+      config: path.join(__dirname, "tailwind.config.js"),
+    }),
+    require("autoprefixer"),
+    require("tailwindcss/nesting"),
+  ],
 }