Revert to Roboto for all

app/assets/stylesheets/application.scss

@@ -95,7 +95,7 @@ table {
 }
 
 body {
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  font-family: 'Roboto', sans-serif;
   background: #282c37 image-url('background-photo.jpeg');
   background-size: cover;
   background-attachment: fixed;