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/app.component.ts

@@ -1,9 +1,15 @@
 import { Component } from '@angular/core';
+import { RouterOutlet } from '@angular/router';
+import { LoadingBarModule } from '@ngx-loading-bar/core';
+
+import { NavBarComponent } from './core/nav-bar/nav-bar.component';
 
 @Component({
   selector: 'app-root',
   templateUrl: './app.component.html',
   styleUrls: ['./app.component.css'],
+  standalone: true,
+  imports: [LoadingBarModule, NavBarComponent, RouterOutlet],
 })
 export class AppComponent {
   title = 'app';