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/cost-centre/cost-centre-detail/cost-centre-detail.component.ts

@@ -1,10 +1,10 @@
 import { AfterViewInit, Component, ElementRef, OnInit, ViewChild } from '@angular/core';
-
-import { CostCentreService } from '../cost-centre.service';
-import { CostCentre } from '../../core/cost-centre';
-import { ActivatedRoute, Router } from '@angular/router';
-import { ToasterService } from '../../core/toaster.service';
 import { FormBuilder, FormGroup } from '@angular/forms';
+import { ActivatedRoute, Router } from '@angular/router';
+
+import { CostCentre } from '../../core/cost-centre';
+import { ToasterService } from '../../core/toaster.service';
+import { CostCentreService } from '../cost-centre.service';
 
 @Component({
   selector: 'app-cost-centre-detail',
@@ -53,7 +53,7 @@ export class CostCentreDetailComponent implements OnInit, AfterViewInit {
 
   save() {
     this.ser.saveOrUpdate(this.getItem()).subscribe(
-      (result) => {
+      () => {
         this.toaster.show('Success', '');
         this.router.navigateByUrl('/cost-centres');
       },