MAINT: modernize project

[jorgepiloto]

Solves #33 by:

• Remove the "setup.py" as this is a pure Python package
• The "pytest.ini" file can be declared inside of the "pyproject.toml"
• Vale, the documentation style checker that we currently use, can be implemented in the CI/CD pipeline
• Update requirements and add dependabot
• Custom domain for your documentation
• Update documentation theme to new uses the old "ansys_sphinx_theme"
• Automate private publish of artifacts in CI/CD pipeline
• Create stable and development documentation repositories
• Enhance documentation deployment workflow
• Update version to 0.1.dev0