d/p/ubuntu/mouse-animations: Fix unregistering resources
The Yaru-specific resources are only registered when the last-used theme was Yaru. If g-c-c was started with another theme, we would unref the Yaru resources one too many times.
LP: #2085610
The Yaru-specific resources are only registered when the last-used theme was Yaru. If g-c-c was started with another theme, we would unref the Yaru resources one too many times.
LP: #2085610