Optimize the code and fix bug

1. Create a new descripition component code
2. Optimize the code to extract a MaaS feature module and a common module.
3. Optimize the service code and create a new maasService.
4.Click the Q&A Assistant menu, the front-end interface does not deliver an application ID.

Issue-ID: USECASEUI-844
Change-Id: If57938f9c57b186691798eb0fb2cdd2fd64ed58a
Signed-off-by: kaixiliu <liukaixi@chinamobile.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/usecaseui-portal/src/app/shared/components/description/descriptions-item.component.ts b/usecaseui-portal/src/app/shared/components/description/descriptions-item.component.ts
new file mode 100644
index 00000000..9f168f02
--- /dev/null
+++ b/usecaseui-portal/src/app/shared/components/description/descriptions-item.component.ts
@@ -0,0 +1,28 @@
+
+import { Component, Input, OnInit, TemplateRef, ViewChild, OnDestroy } from '@angular/core';
+import { Subject } from 'rxjs';
+
+@Component({
+  selector: 'app-descriptions-item',
+  template: `
+    <ng-template>
+      <ng-content></ng-content>
+    </ng-template>
+  `,
+})
+export class DescriptionItemComponent implements OnDestroy {
+  @ViewChild(TemplateRef) content: TemplateRef<void>;
+  @Input() nzSpan: number = 1;
+  @Input() nzTitle: string = '';
+
+  readonly inputChange$ = new Subject<void>();
+
+  ngOnChanges(): void {
+    this.inputChange$.next();
+  }
+
+  ngOnDestroy(): void {
+    this.inputChange$.complete();
+  }
+  
+}