Screen Resize SVG canvas adaption

[SpiritSeal]

When resizing the window, particularly from a lower resolution to a greater one, the svg canvas remains the same size, causing visual rendering issues, such as nodes only being visible on half of the screen.

An optimal resolution to this problem that could also resolve the issue of a limited svg canvas space in general would be to utilize svg viewports and viewboxes to allow the svg simulation canvas to appear to become the full size of the available window space, but allowing d3 to continue to interact with the element as it already does.

[SpiritSeal]

Superseded by #26