Merge pull request #366 from Vimux/optimize-generic-svg

Optimize all generic SVG files

All of our generic SVG files (6) have been optimized. In some cases it was necessary to slightly change the shape of the icons. The main goal was to reduce the maximum size of generic SVG below 300 bytes.

Optimized files should retain their original visuals. Reshaped + optimized files contain only minor shape changes. All in all, it's hard to tell the difference without a direct comparison, or even with one.

Author: Vimux