Fix: Login deleting old clients was conflicting with login history

Chore: Moved to angular linting using the recommended plugins / settings

overlord/src/app/client/client.service.spec.ts

@@ -1,5 +1,5 @@
-import { inject, TestBed } from '@angular/core/testing';
 import { HttpClientModule } from '@angular/common/http';
+import { inject, TestBed } from '@angular/core/testing';
 
 import { ClientService } from './client.service';