-Updated depth models and depth generation backend

Hopefully this doesn't break things even more for most people.
But this should give proper cuda support for 50 series GPUs, as well as less buggy support for AMD and others. If it doesn't just explode anyway.
Also the way depth resolution works has changed now so that the long edge of the image matches the set depth resolution. Before, the short edge would be used and the long edge would be scaled up proportional to the aspect ratio which could lead to really high resolution and vram usage for images with a really wide aspect ratio.
Anyway all that to say you will have to increase the depth resolution to achieve the same quality as before.

Also, since models have changed (multiple times by now) and steam doesn't really delete the old files, you may delete all of the non .onnx models in the app folder under midas3/weights, if you want.

Assuming all of this goes well, I should be able to do another round of QoL soon.