Re-label username form piece

Author: seanstory

example-apps/internal-knowledge-search/app-ui/src/components/SearchApplicationSettings.tsx

@@ -269,7 +269,7 @@ const SearchApplicationSettings: React.FC = () => {
  htmlFor="appUser"
  className="block text-sm font-medium mb-1 text-gray-700"
  >
- Application Elasticsearch Username:
+ Search Application Username:
  </label>
  <p className="text-xs mb-2 text-gray-500">The Elasticsearch username to use to establish a connection with.</p>
  <input