Merge branch 'no-oxygen' into 'master'

Replace Oxygen-Sans with Noto Sans font on visual_review_toolbar

See merge request gitlab-org/gitlab-ce!31561

app/assets/javascripts/visual_review_toolbar/styles/toolbar.css

@@ -42,7 +42,7 @@
   position: fixed;
   bottom: 1rem;
   right: 1rem;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell,
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans', Ubuntu, Cantarell,
   'Helvetica Neue', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',
   'Noto Color Emoji';
   font-size: .8rem;