Make DPS STAC guide visible

[hrodmn]

We have a guide for using the DPS STAC auto-cataloging feature but it is not listed in the navigation page. We need to add it to the technical tutorials!

Guide link: https://github.com/MAAP-Project/maap-documentation/blob/develop/docs/source/technical_tutorials/dps_tutorial/dps_stac_metadata.ipynb