Fixed smaller rounting bugs

src/app/pages/algorithms/service/algorithms.service.ts

@@ -1,6 +1,7 @@
 import { Injectable } from '@angular/core';
 import { AlgorithmCategory } from '../models/algorithm-category';
 import { Observable, of } from 'rxjs';
+import {RouterConstants} from '../../../constants/RouterConstants';
 
 @Injectable({
   providedIn: 'root'
@@ -12,7 +13,7 @@ export class AlgorithmsService {
       id: 'pathfinding',
       title: 'ALGORITHM.PATHFINDING.TITLE',
       description: 'ALGORITHM.PATHFINDING.DESCRIPTION',
-      routerLink: 'pathfinding'
+      routerLink: RouterConstants.PATHFINDING.LINK
     }
   ];