Add proxy app and app link creation in appstore view

dashboard/src/components/ApplinkDialog.vue

@@ -1,6 +1,6 @@
 <template>
   <Dialog ref="applinkDialog"
-    :title="$t('app.editApplinkDialog.title')"
+    :title="mode === 'edit' ? $t('app.editApplinkDialog.title') : $t('app.addApplinkDialog.title')"
     :reject-label="$t('main.dialog.cancel')"
     :confirm-label="$t('main.dialog.save')"
      confirm-style="success"
@@ -148,6 +148,7 @@ export default {
       this.id = applink ? applink.id : '';
       this.upstreamUri = applink ? applink.upstreamUri : '';
       this.label = applink ? applink.label : '';
+      this.icon = applink ? {} : { data: '__original__' };
       this.iconUrl = applink ? applink.iconUrl : '';
       this.tags = applink ? applink.tags : [];
       this.accessRestrictionOption = applink && applink.accessRestriction ? 'groups' : 'any';
@@ -181,7 +182,14 @@ export default {
         data.icon = this.icon.data.replace(/^data:image\/[a-z]+;base64,/, '');
       }
 
-      await applinksModel.update(this.id, data);
+      try {
+        if (this.mode === 'edit') await applinksModel.update(this.id, data);
+        else await applinksModel.add(data);
+      } catch (e) {
+        console.error('Failed to edit or add applink', e);
+        this.busy = false;
+        return;
+      }
 
       this.busy = false;