Weightslab Examples and Documentation revamp

[guillaume-byte]

TODO:

• Revamp documentation
• Revamp current examples in the doc pages
• Add new examples:
  • UltraLytics examples integrations
  • Lightning examples integrations
• Integrate basic torch examples with collabs and maybe some use cases
• Medical Imaging examples: InBreast ?

[guillaume-byte]

First part done here #242