05-Photometry/01-aperture_basics: Explain when to use aperture_photometry vs ApertureStats

At the time of writing, `05-Photometry/01-aperture_basics.ipynb` showcases both `aperture_photometry` and `ApertureStats`. But the content isn't clear on when users should pick one over the other for their scientific use cases, especially when both return similar results.

The notebook authors are documented as @larrybradley and Lauren Chambers.

Open 05-Photometry/01-aperture_basics.ipynb and read the existing sections that demonstrate aperture_photometry and ApertureStats. Compare what each example returns and add guidance explaining when a scientific user should choose either function, especially when their results appear similar. Done means the notebook clearly communicates the use cases for both approaches.

Written by the indexing model from the issue text.