blog: using logoproportio-inverse.svg for every blog page
blog: changing no-columns breakpoint
Merge commit 'e0cbf50e141aa12076afa839450a23c6ea07030c' into blog

* commit 'e0cbf50e141aa12076afa839450a23c6ea07030c':
  blog: changing no-columns breakpoint
  blog: using logoproportio-inverse.svg for every blog page