Add introductory validation notebooks
documentation
25.05
This update enhances the ValidMind documentation and testing framework with several improvements:
- The “developer” portal is now called the “library” portal, reflecting its broader scope beyond just developers.
- The numbering structure in the portal has been updated for better clarity.
- Language and links in the portal have been made more universal to reflect its comprehensive nature.
- Styling from the API docs is now applied to notebooks and test descriptions, ensuring consistent side navigation and addressing issues with long titles.
- The main top navigation link has been removed as it is already present in the footer, following discussions from the homepage redesign.