Footnotes: Increased width+spacing of links in SCSS. Fixes gh-5448.

Oops, this is in variables so don't worry about it for now.
I was thinking more in lines with the Bootstrap (or theme https://github.com/wet-boew/theme-gcwu-fegc/blob/master/src/_variables.scss) naming which is closer to `$VIEWPORT-PLUGIN-PROPERTY` but we can leave it for now.