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

Fixes: #1216

src/app/templates/create-template/create-template.component.ts

@@ -25,7 +25,7 @@ export class CreateTemplateComponent implements OnInit {
   /** CKEditor5 */
   public Editor = ClassicEditor;
   /** CKEditor5 Template Reference */
-  @ViewChild('ckEditor') ckEditor: any;
+  @ViewChild('ckEditor', { static: true }) ckEditor: any;
 
   /** Template form. */
   templateForm: FormGroup;

src/app/templates/edit-template/edit-template.component.ts

@@ -25,7 +25,7 @@ export class EditTemplateComponent implements OnInit {
   /** CKEditor5 */
   public Editor = ClassicEditor;
   /** CKEditor5 Template Reference */
-  @ViewChild('ckEditor') ckEditor: any;
+  @ViewChild('ckEditor', { static: true }) ckEditor: any;
 
   /** Template form. */
   templateForm: FormGroup;

src/app/templates/templates.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';
 
 /**
@@ -21,9 +23,9 @@ export class TemplatesComponent implements OnInit {
   dataSource: MatTableDataSource<any>;
 
   /** Paginator for templates table. */
-  @ViewChild(MatPaginator) paginator: MatPaginator;
+  @ViewChild(MatPaginator, { static: true }) paginator: MatPaginator;
   /** Sorter for templates table. */
-  @ViewChild(MatSort) sort: MatSort;
+  @ViewChild(MatSort, { static: true }) sort: MatSort;
 
   /**
    * Retrieves the templates data from `resolve`.

src/app/templates/view-template/view-template.component.ts

@@ -1,7 +1,7 @@
 /** Angular Imports */
 import { Component } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
-import { MatDialog } from '@angular/material';
+import { MatDialog } from '@angular/material/dialog';
 
 /** Custom Services */
 import { TemplatesService } from '../templates.service';