Allow zooming of SVG with mouse wheel

[totkeks]

I just installed this extension, because vscode unfortunately can't display SVG out of the box. But then I wanted to zoom into some smaller SVG icons and noticed, that this doesn't work with the mouse wheel.

When using ctrl+ or ctrl- it zoomed the whole application windows, which was not what I wanted.

Could you please add the option to zoom the SVG preview? Either with mouse wheel or with buttons.

[cssho]

@totkeks
Added support for zooming of SVG in the latest version.
You can use it by holding ctrl/cmd and using mouse wheel.

[totkeks]

Smooth. Works great. Thank you! :-)