mobian, pinephone camera, and megapixels

[calinb]

As graphicsmagick compatibility has been added I tried swapping imagemagick for graphicsmagick and this also works as a quick fix, just in case..

Yes. Good point. After the script's existence test for imagemagick errors, due to the bash-ism, it will use gm, if installed. I've not looked into gm but maybe it's a better choice than im for this usage anyway, because I suspect gm may be a lighter weight program and the im GUI doesn't seem terribly usable on PinePhone Mobian to me.

But, for the first time, I'm now getting .jpg files in my Pictures folder using Megapixels so "if it works, don't fix it" is the approach I'm sticking-with!