Avoiding outdoor exposure and not feeding your cat raw food are genuinely your best bet.

The likelihood of you transferring it to your cat is extremely low, essentially impossible. If you and your family don't work in animal agriculture, animal husbandry, or meat processing, you're not going to catch it in the first place. All of the fear right now is on animal-to-human exposure, because the virus is spread by physical contact. (particularly physical contact with bodily fluids)

Again, avoiding outdoor exposure is your best bet. Don't let your dog chase birds or eat bird poop. Don't let cats outside and make others aware of the high risk to both the cat and themselves.

Window strikes shouldn't be a major risk factor for spread, but preventing them is worth doing regardless. Dotted marker grids placed on the outside of the window and spaced around 5cm are really effective. White for reflective window strikes and black for fly-through window strikes. I bought a bunch in bulk and just throw 'em up on every window every time I move. I genuinely don't even notice them from the inside.