[CORD-965] Fixed Safari bug on Keyboard Shortcut and added tests

Change-Id: Ibaf99ea4eccda47105f6dba149950b55ad7f383c
diff --git a/src/app/core/key-binding/key-binding-panel.html b/src/app/core/key-binding/key-binding-panel.html
index 7ce982a..4769faa 100644
--- a/src/app/core/key-binding/key-binding-panel.html
+++ b/src/app/core/key-binding/key-binding-panel.html
@@ -14,7 +14,7 @@
                     <span ng-repeat="m in binding.modifiers">
                         {{m}} +
                     </span>
-                    {{binding.key}}
+                    {{binding.label.toLowerCase() || binding.key.toLowerCase()}}
                 </code>
             </div>
             <div class="col-xs-7">