Fix the styling of the search box on the redirect url management dashboard

src/Umbraco.Web.UI.Client/src/views/dashboard/content/redirecturls.html

@@ -29,7 +29,7 @@
 
             <umb-editor-sub-header-section ng-if="vm.dashboard.urlTrackerDisabled === false">
 
-                <form class="form-search -no-margin-bottom pull-right" novalidate>
+                <ng-form class="form-search -no-margin-bottom pull-right" novalidate>
                     <div class="inner-addon left-addon">
                         <i class="icon icon-search"></i>
                         <input
@@ -42,7 +42,7 @@
                             prevent-enter-submit
                             no-dirty-check>
                     </div>
-                </form>
+                </ng-form>
 
             </umb-editor-sub-header-section>