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/employee-attendance/employee-attendance.service.ts

@@ -1,10 +1,12 @@
+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 { EmployeeAttendance } from './employee-attendance';
+
 import { ErrorLoggerService } from '../core/error-logger.service';
 
+import { EmployeeAttendance } from './employee-attendance';
+
 const httpOptions = {
   headers: new HttpHeaders({ 'Content-Type': 'application/json' }),
 };
@@ -33,7 +35,7 @@ export class EmployeeAttendanceService {
   }
 
   save(employeeAttendance: EmployeeAttendance): Observable<EmployeeAttendance> {
-    const id = employeeAttendance.employee.id;
+    const { id } = employeeAttendance.employee;
     return <Observable<EmployeeAttendance>>(
       this.http
         .post<EmployeeAttendance>(`${url}/${id}`, employeeAttendance, httpOptions)