[M] [I] Fix large canvas size grid problem

[therealbluepandabear]

This can be fixed by overlaying the pixel art creation with a canvas of a literal width/height in pixels which is zoomed to a point where it perfectly overlaps/matches that of the pixel grid view canvas, but instead, this canvas has no bitmap and its only purpose is for the grid lines to be drawn on it so when the user zooms in they will not become thicker but have the same size for each canvas creation of WxH pixels. dedicate a day or two purely for testing this so no performance is lost -- seriously... test at least 3 different method of doing this.