Develop better tutorials and examples for lakeFS Python SDK usage

[nopcoder]

Feedback indicates that current guides do not adequately cover practical use cases or provide clear examples of how to use lakeFS using the Python SDK.

https://lakefs.slack.com/archives/C01APUNTSGH/p1740305114751379

Proposed Solution:

Update the current documentation structure while adding use-cases with examples.

Structure

• Overview
  General description with capabilities
  Features and reference to by target audience (api reference for developers)
  Getting started - requirements, and how to install

• Tutorials / User Guides
  A series of step-by-step tutorials demonstrating how to perform specific actions - similar to what we have today in a single page.
  Focus need to be one single key task.
  In-depth use cases with real-world examples.
  Error handling

• API Reference
  Reference the current Python SDK generated SDK documentation
  Consider embedding the API, related to Refresh LakeFS Python SDK API Reference Using MkDocs #8721

• Best Practices and Performance
  Performance relate to different ways we enable upload/download
  Explain the differences between using boto - presign or not