LT 281: Users shall be able to switch between themes (#45)

* LT-281: Users shall be able to switch between themes

* Avoiding compatibility issues

* Typo fixing

Packages/ohif-user-management/client/components/userAccountMenu/userAccountMenu.html

@@ -22,6 +22,12 @@
                     </li>
                 {{/if}}
                 <li role="separator" class="divider"></li>
+                <li>
+                    <a id="themeSelector">
+                        <i class="fa fa-sliders fa-lg"></i> Themes
+                    </a>
+                </li>
+                <li role="separator" class="divider"></li>
                 <li>
                     <a id="serverInformation">
                         <i class="fa fa-server fa-lg"></i> Server Information