Fix Incorrect Image Path and Broken xref Links in Documentation

[cowboysj]

Problem

Incorrect Image Path in Spring-AI-docs

The image reference image::spring_ai_logo_with_text.svg is not resolving correctly.

This may be due to an incorrect relative path or missing file in the specified directory.

Broken xref Links

Several xref links in the documentation are not resolving properly due to incorrect or outdated paths.