Fix Raleway font

gui/assets/font/raleway.css

@@ -2,5 +2,5 @@
   font-family: 'Raleway';
   font-style: normal;
   font-weight: 500;
-  src: local('Raleway'), url(raleway-500.woff) format('woff');
+  src: local('Raleway Medium'), local('Raleway-Medium'), url(raleway-500.woff) format('woff');
 }