Remember preferences from last use
Every time I start Cheese, preferences go back to their default values.
In my particular case, I have a USB camera in addition to the one integrated in the laptop. I always want to use the USB camera unless it's not plugged in, but I have to change that setting every time I start Cheese.
Same happens to other settings like the photo/video resolutions, they go down to 640x480 and I usually want to use the maximum resolution supported by the camera.
I'm using 3.34.0 on Fedora 31.
Finally, thanks for your hard work in this useful piece of software.