Moved to Angular v20 and Tailwind v4 plus all related dependencies

Renamed Docker directory.

Also serving static files from FastAPI.

overlord/src/app/issue/issue.routes.ts

@@ -2,7 +2,6 @@ import { Routes } from '@angular/router';
 
 import { authGuard } from '../auth/auth-guard.service';
 import { costCentreListResolver } from '../cost-centre/cost-centre-list.resolver';
-
 import { IssueComponent } from './issue.component';
 import { issueResolver } from './issue.resolver';