Update app bundler information in runtime-tab.md

Clarified the availability of the app bundler setting and updated the descriptions for Rspack and Rollup.

Author: MarkvanMents

content/en/docs/refguide/modeling/app-explorer/app/app-settings/runtime-tab.md

@@ -22,13 +22,15 @@ The available configuration options are as follows:
 ### App bundler {#app-bundler}
 
 {{% alert type="info" %}}
-This setting was introduced in [Mendix 11.9.0](/releasenotes/studio-pro/11.9/) and available in Mendix 11.6.7 MTS. It is only available for applications using React client.
+This setting is only for applications using [Mendix React Client](/refguide/mendix-client/react/).
+
+This setting was introduced in [Mendix 11.9.0](/releasenotes/studio-pro/11.9/). It is also available in Mendix 11.6 MTS, patch release 11.6.7 and above.
 {{% /alert %}} 
 
 The available options are listed below:
 
-* **Rspack**: Use Rspack to bundle the React client application for faster build times and lower memory usage.
-* **Rollup**: Use Rollup to bundle the React client application (default)
+* **Rspack**: Use the Rspack application bundler for faster build times and lower memory usage.
+* **Rollup**: Use Rollup application bundler (default)
 
 For more information about Rspack, see the [official documentation](https://www.rspack.dev/).