fixed positioning of hamburger menu on header

 - Changed to margin for vertical allign as used in bootstrap 3 original
 - Also added an `active` state to show when the extra items are enabled

CHANGELOG

@@ -41,6 +41,7 @@ v 8.1.0 (unreleased)
   - Move CI services page to project settings area
   - Add "Quick Submit" behavior to input fields throughout the application. Use
     Cmd+Enter on Mac and Ctrl+Enter on Windows/Linux.
+  - Fix position of hamburger in header for smaller screens (Han Loong Liauw)
 
 v 8.0.4
   - Fix Message-ID header to be RFC 2111-compliant to prevent e-mails being dropped (Stan Hu)

app/assets/javascripts/application.js.coffee

@@ -180,6 +180,7 @@ $ ->
   $('.navbar-toggle').on 'click', ->
     $('.header-content .title').toggle()
     $('.header-content .navbar-collapse').toggle()
+    $('.navbar-toggle').toggleClass('active')
 
   # Show/hide comments on diff
   $("body").on "click", ".js-toggle-diff-comments", (e) ->

app/assets/stylesheets/generic/header.scss

@@ -50,15 +50,17 @@ header {
 
       .navbar-toggle {
         color: #666;
-        margin: 0;
+        margin: 6px 0;
         border-radius: 0;
         position: absolute;
         right: 2px;
-        top: 15px;
 
         &:hover {
           background-color: #EEE;
         }
+        &.active {
+          color: #7f8fa4;
+        }
       }
     }
   }
@@ -87,6 +89,7 @@ header {
 
     .navbar-collapse {
       float: right;
+      border-top: none;
     }
   }