Moved from tslint to eslint as tslint was depreciated.

Added prettier and also prettied all the typescript files using prettier

ESLint is using the AirBnB rules which are the most strict to lint the files.

overlord/src/app/client/client-list/client-list-datasource.ts

@@ -1,33 +1,29 @@
-import {DataSource} from '@angular/cdk/collections';
+import { DataSource } from '@angular/cdk/collections';
 import { MatPaginator } from '@angular/material/paginator';
 import { MatSort } from '@angular/material/sort';
-import {map} from 'rxjs/operators';
-import {merge, Observable, of as observableOf} from 'rxjs';
-import {Client} from '../client';
+import { map } from 'rxjs/operators';
+import { merge, Observable, of as observableOf } from 'rxjs';
+import { Client } from '../client';
 
 export class ClientListDataSource extends DataSource<Client> {
-
   constructor(private paginator: MatPaginator, private sort: MatSort, public data: Client[]) {
     super();
   }
 
   connect(): Observable<Client[]> {
-    const dataMutations = [
-      observableOf(this.data),
-      this.paginator.page,
-      this.sort.sortChange
-    ];
+    const dataMutations = [observableOf(this.data), this.paginator.page, this.sort.sortChange];
 
     // Set the paginators length
     this.paginator.length = this.data.length;
 
-    return merge(...dataMutations).pipe(map(() => {
-      return this.getPagedData(this.getSortedData([...this.data]));
-    }));
+    return merge(...dataMutations).pipe(
+      map(() => {
+        return this.getPagedData(this.getSortedData([...this.data]));
+      }),
+    );
   }
 
-  disconnect() {
-  }
+  disconnect() {}
 
   private getPagedData(data: Client[]) {
     const startIndex = this.paginator.pageIndex * this.paginator.pageSize;