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

Fixes: #1216

src/app/system/codes/codes.component.ts

@@ -1,6 +1,8 @@
 /** Angular Imports */
 import { Component, OnInit, ViewChild } from '@angular/core';
-import { MatTableDataSource, MatPaginator, MatSort } from '@angular/material';
+import { MatPaginator } from '@angular/material/paginator';
+import { MatSort } from '@angular/material/sort';
+import { MatTableDataSource } from '@angular/material/table';
 import { ActivatedRoute } from '@angular/router';
 
 @Component({
@@ -18,9 +20,9 @@ export class CodesComponent implements OnInit {
   dataSource: MatTableDataSource<any>;
 
   /** Paginator for codes table. */
-  @ViewChild(MatPaginator) paginator: MatPaginator;
+  @ViewChild(MatPaginator, { static: true }) paginator: MatPaginator;
   /** Sorter for codes table. */
-  @ViewChild(MatSort) sort: MatSort;
+  @ViewChild(MatSort, { static: true }) sort: MatSort;
 
   /**
    * Retrieves the codes data from `resolve`.

src/app/system/codes/view-code/view-code.component.ts

@@ -2,7 +2,7 @@
 import { Component, OnInit } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
 import { FormGroup, FormBuilder, Validators, FormArray } from '@angular/forms';
-import { MatDialog } from '@angular/material';
+import { MatDialog } from '@angular/material/dialog';
 
 /** Custom Services */
 import { SystemService } from 'app/system/system.service';