Moved to Angular v20 and Tailwind v4 plus all related dependencies

Renamed Docker directory.

Also serving static files from FastAPI.

overlord/src/app/settings/settings.service.ts

@@ -1,20 +1,17 @@
 import { HttpClient } from '@angular/common/http';
-import { Injectable } from '@angular/core';
+import { inject, Injectable } from '@angular/core';
 import { Observable } from 'rxjs/internal/Observable';
 import { catchError } from 'rxjs/operators';
 
 import { ErrorLoggerService } from '../core/error-logger.service';
-
 import { LockInfo } from './lock-info';
 
 const serviceName = 'SettingsService';
 
 @Injectable({ providedIn: 'root' })
 export class SettingsService {
-  constructor(
-    private http: HttpClient,
-    private log: ErrorLoggerService,
-  ) {}
+  private http = inject(HttpClient);
+  private log = inject(ErrorLoggerService);
 
   getLockInformation(): Observable<[LockInfo]> {
     const url = '/api/lock-information';