Update COLLABORATOR_GUIDE.md

Signed-off-by: Claudio W <cwunder@gnome.org>

COLLABORATOR_GUIDE.md

@@ -83,11 +83,14 @@ The Website also uses several other Open Source libraries (not limited to) liste
 - [Shikiji][] is a Syntax Highlighter used for our Codeboxes
   - The syntax highlighting is done within the processing of the Markdown files with the MDX compiler as a Rehype plugin.
 - [MDX][] and Markdown are used for structuring the Content of the Website
-- [`react-intl`][] is the i18n Library adopted within the Website
+- [`next-intl`][] is the i18n Library adopted within the Website
+  - It provides an excellent integration with Next.js, But it also supports standalone support for i18n if it eventually migrates from Next.js to something else.
+  - Supports React Server Components and Next.js Middlewares
 - [`next-sitemap`](https://www.npmjs.com/package/next-sitemap) is used for Sitemap and `robots.txt` Generation
 - We use [Rehype](https://github.com/rehypejs/rehype) and [Remark](https://github.com/remarkjs/remark) to extend MDX functionality
 - We use [Storybook](https://storybook.js.org/) for Manual Testing and Visual Regression Tests of our React Components
   - Storybook also provides a sandboxed environment, which is very useful whilst for crafting React Components
+- We use [Sentry](https://sentry.io/about) for reporting Exceptions and monitoring the performance and reliability of the application
 
 ## Code Editing