message: Fixes Re-add 'blog' header link in French version
  This was previously excluded as we didn't have any French blog
  posts. That has now changed however.
diff: <nav id="main-nav">
  <div id="menu-items">
  <a href="{{ "company" | absURL }}" class="menu-link desktop-only">{{ T "header-cdb" }}</a>
  - {{ if not (eq .Lang "fr") }}<a href="{{ "blog" | absURL }}" class="menu-link desktop-only">{{ T "header-blog" }}</a>{{ end }}
  + <a href="{{ "blog" | absURL }}" class="menu-link desktop-only">{{ T "header-blog" }}</a>
  <a class="{{ if .IsHome }}button button-primary icon icon-letter {{ end }}menu-link desktop-only"
  href="{{ "generator" | absURL }}">{{ T "header-generator" }}</a>
  