Merge branch 'installation-page-ff' into 'master'

fixed svg size on installation page in FireFox

Closes #1432

See merge request !6254

source/stylesheets/installation.css.scss

@@ -228,6 +228,7 @@ body {
   svg {
     height: 52px;
     max-width: 100%;
+    width: 200px;
   }
 }