Only show My Apps header if an app is installed

src/views/apps.html

@@ -130,7 +130,7 @@
       </div>
     </div>
 
-    <h1 class="view-header">
+    <h1 class="view-header" ng-show="installedApps.length > 0">
       {{ 'apps.title' | tr }}
       <div class="view-header-search-bar">
         <form class="form-inline">
@@ -140,7 +140,6 @@
               <button class="btn btn-default" type="button" ng-class="{ 'active': showFilter, 'btn-warning': showFilter || selectedTags.length || selectedState.state || !selectedGroup._unset || !selectedDomain._alldomains }" ng-click="showFilter = !showFilter"><i class="fas fa-filter"></i></button>
             </span>
           </div>
-
         </form>
       </div>
       <div ng-show="showFilter" class="view-header-filter-bar">