feat(rbac): protect templates deployment (#34)

* feat(templates): show templates link

* feat(templates): protect deploying of templates

* feat(templates): allow fetching of templates to any user

* feat(rbac): allow template file fetching

app/docker/components/dockerSidebarContent/dockerSidebarContent.html

@@ -1,7 +1,7 @@
 <li class="sidebar-list">
   <a ui-sref="docker.dashboard({endpointId: $ctrl.endpointId})" ui-sref-active="active">Dashboard <span class="menu-icon fa fa-tachometer-alt fa-fw"></span></a>
 </li>
-<li class="sidebar-list" ng-if="!$ctrl.offlineMode" authorization="DockerContainerCreate, PortainerStackCreate">
+<li class="sidebar-list" ng-if="!$ctrl.offlineMode">
   <a ui-sref="docker.templates({endpointId: $ctrl.endpointId})" ui-sref-active="active">App Templates <span class="menu-icon fa fa-rocket fa-fw"></span></a>
 
   <div class="sidebar-sublist" ng-if="$ctrl.toggle && $ctrl.currentRouteName.includes('docker.templates')">