Clamp minSize to 0.25 < x < 1 in PanZoomView
Clamp minSize to 0.25 < x < 1 in PanZoomView

If the content is ridiculously wide, it's not worth zooming too far out;
everything becomes ridiculously tiny and iOS will sometimes crash,
presumably because it makes a texture buffer too large or something.

fastmail-commit: b77745ec603103206c32cfccd6c71f0704a5ced0

fastmail/overture