[web-app] 告警配置列表信息展示

web-app/src/app/routes/alert/alert-center/alert-center.component.html

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+<p>alert-center works!</p>

web-app/src/app/routes/alert/alert-center/alert-center.component.spec.ts

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+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { AlertCenterComponent } from './alert-center.component';
+
+describe('AlertCenterComponent', () => {
+  let component: AlertCenterComponent;
+  let fixture: ComponentFixture<AlertCenterComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ AlertCenterComponent ]
+    })
+    .compileComponents();
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(AlertCenterComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

web-app/src/app/routes/alert/alert-center/alert-center.component.ts

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+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-alert-center',
+  templateUrl: './alert-center.component.html',
+  styles: [
+  ]
+})
+export class AlertCenterComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+}