build: update to angular-v9.1.12 (#1215)

Fixes: #1216

src/app/reports/reports.component.ts

@@ -1,6 +1,8 @@
 /** Angular Imports */
 import { Component, OnInit, ViewChild } from '@angular/core';
-import {MatPaginator, MatSort, MatTableDataSource} from '@angular/material';
+import { MatPaginator } from '@angular/material/paginator';
+import { MatSort } from '@angular/material/sort';
+import { MatTableDataSource } from '@angular/material/table';
 import { ActivatedRoute, Router } from '@angular/router';
 
 /**
@@ -23,9 +25,9 @@ export class ReportsComponent implements OnInit {
   dataSource = new MatTableDataSource();
 
   /** Paginator for reports table. */
-  @ViewChild(MatPaginator) paginator: MatPaginator;
+  @ViewChild(MatPaginator, { static: true }) paginator: MatPaginator;
   /** Sorter for reports table. */
-  @ViewChild(MatSort) sort: MatSort;
+  @ViewChild(MatSort, { static: true }) sort: MatSort;
 
   /**
    * Retrieves the reports data from `resolve`.