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.ts

@@ -1,5 +1,6 @@
 import { Employee } from '../employee/employee';
-import { AttendanceType } from '../attendance/attendance-type';
+
+import { EmployeeAttendanceItem } from './employee-attendance-item';
 
 export class EmployeeAttendance {
   startDate: string;
@@ -11,15 +12,3 @@ export class EmployeeAttendance {
     Object.assign(this, init);
   }
 }
-
-export class EmployeeAttendanceItem {
-  date: string;
-  attendanceType: AttendanceType;
-  prints: string;
-  hoursWorked: string;
-  fullDay?: boolean;
-
-  public constructor(init?: Partial<EmployeeAttendanceItem>) {
-    Object.assign(this, init);
-  }
-}