Fix responsivness in some of the SVG icons

[LeeviHalme]

For example svg/color/ltc.svg has width="32" height="32" properties in the <svg> element. This prevents them to be scaled accordingly. If the size of the icon is less than 32px then it will overflow the container instead of scale to the correct size.

For the solution, I would remove all dimension properties from all colored svg icons.