Some more outdated client library references

[validbeck]

Internal Notes for Reviewers

Some cleanup in preparation for the templates exposed in sc-6753.

[cachafla]

Awesome 👍

[github-actions]

PR Summary

This pull request updates the terminology used in various documentation and code files from 'client library' to 'ValidMind Library'. This change is reflected across multiple Jupyter notebooks and R Markdown files, as well as in the Python package documentation. The update aims to standardize the naming convention and improve clarity regarding the library's purpose and usage.

The changes include:

• Updating markdown headers and descriptions in Jupyter notebooks and R Markdown files to use 'ValidMind Library'.
• Modifying the installation and initialization instructions in the Python package documentation to reflect the new terminology.
• Adjusting the description in the R package DESCRIPTION file to align with the updated terminology.

These changes do not affect the functionality of the code but improve the consistency and clarity of the documentation.

Test Suggestions

• Verify that all instances of 'client library' have been correctly replaced with 'ValidMind Library' in the documentation files.
• Ensure that the updated documentation still correctly guides users through the installation and initialization processes.
• Check that the changes do not introduce any syntax errors or formatting issues in the markdown and R Markdown files.