Fix Redux generator success message by making add_redux_specific_messages public

- The install generator now skips add_post_install_message for Redux installs
- Redux generator handles its own success message via add_redux_specific_messages
- This ensures the success message appears correctly for Redux installations

Author: ihabadham

lib/generators/react_on_rails/react_with_redux_generator.rb

@@ -89,6 +89,14 @@ def add_redux_npm_dependencies
         install_packages_with_fallback(regular_packages, dev: false, package_manager: package_manager)
       end
 
+      def add_redux_specific_messages
+        # Override the generic messages with Redux-specific instructions
+        GeneratorMessages.output.clear
+        GeneratorMessages.add_info(
+          GeneratorMessages.helpful_message_after_installation(component_name: "HelloWorldApp", route: "hello_world")
+        )
+      end
+
       private
 
       def install_packages_with_fallback(packages, dev:, package_manager:)
@@ -132,14 +140,6 @@ def dev_flag_for(package_manager)
         when "yarn", "bun" then "--dev"
         end
       end
-
-      def add_redux_specific_messages
-        # Override the generic messages with Redux-specific instructions
-        GeneratorMessages.output.clear
-        GeneratorMessages.add_info(
-          GeneratorMessages.helpful_message_after_installation(component_name: "HelloWorldApp", route: "hello_world")
-        )
-      end
     end
   end
 end