feat: create challenge 48 without solution

apps/angular/dialog-alert-form/tailwind.config.js

@@ -0,0 +1,16 @@
+const { createGlobPatternsForDependencies } = require('@nx/angular/tailwind');
+const { join } = require('path');
+
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: [
+    join(__dirname, 'src/**/!(*.stories|*.spec).{ts,html}'),
+    ...createGlobPatternsForDependencies(__dirname),
+  ],
+  theme: {
+    extend: {},
+  },
+  plugins: [
+    require('@tailwindcss/forms'),
+  ],
+};