Request to refactor the organization of .mdx content files

Request to refactor the organization of .mdx content files, in order to maintain a more efficient structure, facilitate navigation and ensure code maintainability

- Organization by language
- Organization of visual content.
- And anything else I come across in terms of code organization.

**In addition to creating a simple guide `CONTRIBUTING.md` to standardizing pull requests to ensure request quality.**

Start by inventorying the existing .mdx content files and their current organization; the issue does not name specific paths or define a target structure. Review whether CONTRIBUTING.md already exists and identify the expected pull-request guidance. Done would require an agreed organization by language and visual content, along with the requested guide.

Written by the indexing model from the issue text.