icon variation [Litter Robot]

[Waank1]

          ![image](https://github.com/user-attachments/assets/9d76c90f-fec0-487d-8b4c-4bf3c780a0c7)

Originally posted by @rchiileea in #814 (comment)

Again, thank you very much, this is so cute!

I am not the type of guy to look a gift creator in the mouth, but could you please make one just like this but without the kitty inside?

I don't know how many Litter Robot users utilize your awesome talents, or if there are any out there who are as nerdy as me. But I would use both the empty and full icons in my home assistant to indicate whether or not a kitty has used his crapper! I know a little bit about how to edit an icon, but I have no idea how to get that icon in HA.

Thanks,
Russ