[CURVE/RUNE]: Dynamic resolution rendering

[Cloud7050]

Curve and rune currently render at a fixed 512x512 resolution.

This enhancement entails enabling them to render at a dynamic resolution based on the actual canvas size. This would also involve handling canvas resize events in order to redraw at the updated resolution, for example when the side content panel changes size.

Such a feature would bring its rendering more in line with CSG, which supports dynamic resolutions.