Fix mobile layout (#13)

Author: jotak

src/main/resources/web/app/app.scss

@@ -61,8 +61,12 @@
 
 // Responsive design
 @media (max-width: 768px) {
+  pre {
+    padding: 0;
+  }
+
   pre code.hljs {
-    white-space: inherit !important;
+    white-space: pre-wrap !important;
   }
 
   .event {