Update client startup behavior and configuration settings

- Modified the client startup process to use a setTimeout for improved execution timing.
- Enabled auto-loading of bundles in the React on Rails initializer and added an option for immediate hydration.

These changes enhance the initialization process and improve the overall performance of the application.

Author: AbanoubGhadban

packages/react-on-rails/src/ReactOnRails.client.ts

@@ -194,7 +194,9 @@ globalThis.ReactOnRails = {
 
 globalThis.ReactOnRails.resetOptions();
 
-ClientStartup.clientStartup();
+setTimeout(() => {
+  ClientStartup.clientStartup();
+}, 0);
 
 export * from './types/index.ts';
 export default globalThis.ReactOnRails;

spec/dummy/config/initializers/react_on_rails.rb

@@ -40,6 +40,7 @@ def self.adjust_props_for_client_side_hydration(component_name, props)
 
   config.rendering_props_extension = RenderingPropsExtension
   config.components_subdirectory = "startup"
-  config.auto_load_bundle = false
+  config.auto_load_bundle = true
+  config.immediate_hydration = false
   config.generated_component_packs_loading_strategy = :defer
 end