QOL: Add autocomplete for [*] utility helper

Author: tizu69

packages/tailwindcss-language-service/src/completionProvider.ts

@@ -2473,5 +2473,10 @@ async function knownUtilityFunctionArguments(state: State, fn: UtilityFn): Promi
     description: "Support arbitrary URL functions, e.g. `{utility}-['url(…)']`",
   })
 
+  args.push({
+    name: '[*]',
+    description: 'Support arbitrary values, e.g. `{utility}-[abc]`',
+  })
+
   return args
 }