Prettied, Linted and updated angular.json according to the latest schematic of Angular CLI.

Now all that is needed is to make it ready for strict compiling.
Removed eslint-plugin-prettier as it is not recommended and causes errors for both eslint and prettier

Bumped to v8.0.0

overlord/src/app/product/product.service.ts

@@ -1,9 +1,10 @@
+import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http';
 import { Injectable } from '@angular/core';
 import { Observable } from 'rxjs/internal/Observable';
 import { catchError } from 'rxjs/operators';
-import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http';
-import { Product } from '../core/product';
+
 import { ErrorLoggerService } from '../core/error-logger.service';
+import { Product } from '../core/product';
 
 const httpOptions = {
   headers: new HttpHeaders({ 'Content-Type': 'application/json' }),
@@ -52,9 +53,8 @@ export class ProductService {
   saveOrUpdate(product: Product): Observable<Product> {
     if (!product.id) {
       return this.save(product);
-    } else {
-      return this.update(product);
     }
+    return this.update(product);
   }
 
   delete(id: string): Observable<Product> {