regression: weird panel shenanigans

[ryanabx]

Not sure if this is the fault of cosmic-panel or cosmic-applets, but I am having lots of issues with the panel/applets

• Adding applets to the dock doesn't make them visible
• The main panel is blank and super small, setting the panel to have a gap between it and the screen edges reveals exactly one applet (the network applet)

cc: @wash2

[ryanabx]

This commit https://github.com/pop-os/cosmic-panel/commit/bab34ebb0faf1706ca4aa74446df59e6556889d6 in cosmic-panel is the source of the regression