Blacked and isorted the python files

Prettied and eslinted the typescript/html files

bookie/src/app/guest-book/guest-book-detail-resolver.service.ts

@@ -1,18 +1,17 @@
-import {Injectable} from '@angular/core';
-import {ActivatedRouteSnapshot, Resolve, Router, RouterStateSnapshot} from '@angular/router';
-import {GuestBookService} from './guest-book.service';
-import {GuestBook} from './guest-book';
-import {Observable} from 'rxjs/internal/Observable';
+import { Injectable } from '@angular/core';
+import { ActivatedRouteSnapshot, Resolve } from '@angular/router';
+import { Observable } from 'rxjs/internal/Observable';
+
+import { GuestBook } from './guest-book';
+import { GuestBookService } from './guest-book.service';
 
 @Injectable({
-  providedIn: 'root'
+  providedIn: 'root',
 })
 export class GuestBookDetailResolver implements Resolve<GuestBook> {
+  constructor(private ser: GuestBookService) {}
 
-  constructor(private ser: GuestBookService, private router: Router) {
-  }
-
-  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<GuestBook> {
+  resolve(route: ActivatedRouteSnapshot): Observable<GuestBook> {
     const id = route.paramMap.get('id');
     return this.ser.get(id);
   }