Blacked and isorted the python files

Prettied and eslinted the typescript/html files

bookie/src/app/printers/printer-list-resolver.service.ts

@@ -1,18 +1,18 @@
-import {Injectable} from '@angular/core';
-import {ActivatedRouteSnapshot, Resolve, Router, RouterStateSnapshot} from '@angular/router';
-import {Printer} from '../core/printer';
-import {Observable} from 'rxjs/internal/Observable';
-import {PrinterService} from './printer.service';
+import { Injectable } from '@angular/core';
+import { Resolve } from '@angular/router';
+import { Observable } from 'rxjs/internal/Observable';
+
+import { Printer } from '../core/printer';
+
+import { PrinterService } from './printer.service';
 
 @Injectable({
-  providedIn: 'root'
+  providedIn: 'root',
 })
 export class PrinterListResolver implements Resolve<Printer[]> {
+  constructor(private ser: PrinterService) {}
 
-  constructor(private ser: PrinterService, private router: Router) {
-  }
-
-  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<Printer[]> {
+  resolve(): Observable<Printer[]> {
     return this.ser.list();
   }
 }