registerRouter method
Registers a route with the given routeName and builder.
This method should be called separately during the initUIKit process of
TencentCloudChatController for each component
(e.g. Message or Conversation) in the main function of the application.
It automatically adds the component to the global routing table, allowing
other components to navigate to it.
Implementation
void registerRouter({
required String routeName,
required WidgetBuilder builder,
}) {
routes[routeName] = builder;
}