[UI] Add Language to Manual Import, Fix Posters,Banners

frontend/src/Components/Page/Header/PageHeader.css

@@ -1,5 +1,5 @@
 .header {
-  z-index: 2;
+  z-index: 3;
   display: flex;
   align-items: center;
   flex: 0 0 auto;

frontend/src/Components/Page/Sidebar/PageSidebar.css

@@ -19,13 +19,13 @@
   .sidebarContainer {
     position: fixed;
     top: 0;
-    z-index: 1;
+    z-index: 2;
     height: 100vh;
   }
 
   .sidebar {
     position: fixed;
-    z-index: 1;
+    z-index: 2;
     overflow-y: auto;
     width: 100%;
     height: 100%;

frontend/src/Components/SignalRConnector.js

@@ -173,7 +173,10 @@ class SignalRConnector extends Component {
     const resource = body.resource;
     const state = resource.state;
 
-    if (state === 'completed') {
+    // Both sucessful and failed commands need to be
+    // completed, otherwise they spin until they timeout.
+
+    if (state === 'completed' || state === 'failed') {
       this.props.finishCommand(resource);
     } else {
       this.props.updateCommand(resource);