update docs to use rorp v4.0.0 instead of 4.0.0.rc.x (#555)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Documentation**
* Updated references from release candidates to the stable 4.0.0 across
guides.
* Corrected wording and capitalization in profiling guidance for
clarity.
  * Refreshed installation instructions to use stable package versions.
  * Adjusted prerequisites to reflect support starting at version 4.0.0.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: ihabadham

docs/profiling-server-side-rendering-code.md

@@ -107,9 +107,9 @@ To see the renderer behavior while there are many requests coming to it, you can
 1. Then, you can analyze the renderer behavior of each request as stated in `Profile Analysis` section.
 
 ### ExecJS
-React on Rails Pro support profiling with ExecJS starting from version **4.0.0-rc.1**. You will need to do more work to profile exec js if you are using an older version.
+React on Rails Pro supports profiling with ExecJS starting from version **4.0.0**. You will need to do more work to profile ExecJS if you are using an older version.
 
-If you are using **v4.0.0-rc.1** or later, you can enable profiler by setting the `profile_server_rendering_js_code` config by adding the following line to ReactOnRails initializer.
+If you are using **v4.0.0** or later, you can enable the profiler by setting the `profile_server_rendering_js_code` config by adding the following line to the ReactOnRails initializer.
 
 ```ruby
 config.profile_server_rendering_js_code = true

docs/react-server-components/create-without-ssr.md

@@ -13,8 +13,8 @@ To use Server Components in your React on Rails Pro project, you need to follow
 Note: These versions are not released yet, they are still in development. But they will have these versions when released.
 
 ```bash
-yarn add [email protected] [email protected]-rc.11
-bundle add [email protected] [email protected].rc.11
+yarn add [email protected] [email protected]
+bundle add [email protected] [email protected]
 ```
 
 Also, install version 19 of React, React DOM, and `react-on-rails-rsc`:

docs/streaming-server-rendering.md

@@ -7,7 +7,7 @@ React on Rails Pro supports streaming server rendering using React 18's latest A
 - React on Rails Pro subscription
 - React 19
 - React on Rails v15.0.0-alpha.0 or higher
-- React on Rails Pro v4.0.0.rc.5 or higher
+- React on Rails Pro v4.0.0 or higher
 
 ## Benefits of Streaming Server Rendering