Preserve aspect ratio while resizing images

[glenviewjeff]

In photoshop, to maintain aspect ratio when resizing an image, you hold down the shift key while grabbing the corner and dragging. It would be really helpful if this were also implemented in UR when resizing images embedded in the notes. Or alternately just always preserve the aspect ratio when resizing; seems like most people would want this to be the default behavior in UR.

[glenviewjeff]

Also, if you get to working on this, please fix the resizing/resampling algorithm. It renders terrible results when shrinking images. I can help if need be.