Chore: Check for deprecations using eslint plugin

Chore: environment file replacement stopped.
Chore: All components are now standalone and removed all modules
Chore: App routing is now in app.routes and similarly for all submodules
Chore: Http interceptors are now functional and split refresh interceptor into a separate one.

overlord/src/app/period/period-list/period-list.component.spec.ts

@@ -1,6 +1,4 @@
 import { ComponentFixture, fakeAsync, TestBed } from '@angular/core/testing';
-import { ReactiveFormsModule } from '@angular/forms';
-import { RouterTestingModule } from '@angular/router/testing';
 
 import { PeriodListComponent } from './period-list.component';
 
@@ -10,8 +8,7 @@ describe('PeriodListComponent', () => {
 
   beforeEach(fakeAsync(() => {
     TestBed.configureTestingModule({
-      imports: [ReactiveFormsModule, RouterTestingModule],
-      declarations: [PeriodListComponent],
+      imports: [ReactiveFormsModule, RouterTestingModule, PeriodListComponent],
     }).compileComponents();
 
     fixture = TestBed.createComponent(PeriodListComponent);

overlord/src/app/period/period-list/period-list.component.ts

@@ -1,5 +1,20 @@
 import { Component, OnInit } from '@angular/core';
-import { ActivatedRoute } from '@angular/router';
+import { MatAnchor } from '@angular/material/button';
+import { MatCard, MatCardHeader, MatCardTitleGroup, MatCardTitle, MatCardContent } from '@angular/material/card';
+import { MatIcon } from '@angular/material/icon';
+import {
+  MatTable,
+  MatColumnDef,
+  MatHeaderCellDef,
+  MatHeaderCell,
+  MatCellDef,
+  MatCell,
+  MatHeaderRowDef,
+  MatHeaderRow,
+  MatRowDef,
+  MatRow,
+} from '@angular/material/table';
+import { ActivatedRoute, RouterLink } from '@angular/router';
 
 import { Period } from '../period';
 
@@ -9,6 +24,27 @@ import { PeriodListDataSource } from './period-list-datasource';
   selector: 'app-period-list',
   templateUrl: './period-list.component.html',
   styleUrls: ['./period-list.component.css'],
+  standalone: true,
+  imports: [
+    MatCard,
+    MatCardHeader,
+    MatCardTitleGroup,
+    MatCardTitle,
+    MatAnchor,
+    RouterLink,
+    MatIcon,
+    MatCardContent,
+    MatTable,
+    MatColumnDef,
+    MatHeaderCellDef,
+    MatHeaderCell,
+    MatCellDef,
+    MatCell,
+    MatHeaderRowDef,
+    MatHeaderRow,
+    MatRowDef,
+    MatRow,
+  ],
 })
 export class PeriodListComponent implements OnInit {
   dataSource: PeriodListDataSource;