Add AI sparkles icon to the Create Job button

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

frontend/src/screens/Jobs.jsx

@@ -229,7 +229,7 @@ export default function Jobs() {
           </button>
           {can('job_board.create') && (
             <button className="btn btn-primary" onClick={() => setCreating(true)}>
-              <Icon name="plus" /> Create Job
+              <Icon name="plus" /> Create Job <Icon name="sparkles" />
             </button>
           )}
         </div>