With the new API changes in pd-buddy-python 0.5.0, a few fixes were
necessary to make the GUI work without errors again. Among these were
creating a SinkConfig object with the new attributes, and adding list
rows for PPS APDOs. Coming up next: voltage range support!
Assuming the power supply follows the Power Rules, it's a lot more
informative to show its PDP than the number of PDOs it advertises. This
is the first step towards implementing the new design for showing the
Source_Capabilities.