Merge branch 'improve-issue-ui' into 'master'

Improve issue ui

Fix code overflow for description block

See merge request !1051

app/assets/stylesheets/generic/issue_box.scss

@@ -88,6 +88,10 @@
 
   .description {
     padding: 0 15px 10px 15px;
+
+    code {
+      white-space: pre-wrap;
+    }
   }
 
   .title, .context, .description {