[fix] issue in front ui 2.0.1

1.fix add label issue
2.fix unauthorized user can contrl page
Signed-off-by: Yogi_Wang <yawang@vmware.com>

src/portal/src/app/global-message/message.component.html

@@ -8,3 +8,4 @@
         </div>
     </clr-alert>
 </div>
+<div *ngIf="globalMessageOpened" class="mask-layer"></div>

src/portal/src/app/global-message/message.component.scss

@@ -1,3 +1,9 @@
 .alert-style {
     display: inline;
 }
+.mask-layer {
+    position: absolute;
+    width: 100%;
+    height: 100%;
+    z-index: 10000;
+}

src/portal/src/app/project/repository/artifact-list-page/artifact-list/artifact-list-tab/artifact-list-tab.component.ts

@@ -446,20 +446,19 @@ export class ArtifactListTabComponent implements OnInit, OnDestroy {
   }
 
   labelSelectedChange(artifact?: Artifact[]): void {
-    if (artifact && artifact[0].labels) {
     this.imageStickLabels.forEach(data => {
       data.iconsShow = false;
       data.show = true;
     });
-      if (artifact[0].labels.length) {
+    if (artifact && artifact[0].labels && artifact[0].labels.length) {
       artifact[0].labels.forEach((labelInfo: Label) => {
         let findedLabel = this.imageStickLabels.find(data => labelInfo.id === data['label'].id);
+        if (findedLabel) {
           this.imageStickLabels.splice(this.imageStickLabels.indexOf(findedLabel), 1);
           this.imageStickLabels.unshift(findedLabel);
-
           findedLabel.iconsShow = true;
-        });
         }
+      });
     }
   }
 
@@ -491,7 +490,6 @@ export class ArtifactListTabComponent implements OnInit, OnDestroy {
       };
       this.newArtifactService.addLabel(params).subscribe(res => {
         this.refresh();
-
         // set the selected label in front
         this.imageStickLabels.splice(this.imageStickLabels.indexOf(labelInfo), 1);
         this.imageStickLabels.some((data, i) => {