docs: Update to same template theme used by docs.satnogs.org
Currently satnogs-client uses an older version of the sphinx rtd template. Thus, when a user navigates from docs.satnogs.org to satnogs-client, they will observe a sudden theme change.
Currently satnogs-client uses an older version of the sphinx rtd template. Thus, when a user navigates from docs.satnogs.org to satnogs-client, they will observe a sudden theme change.