File cleanup

Author: Salma Alam-Naylor

apps/fretonator-web/src/app/common/route-to-mode-configuration/route-to-mode-configuration.service.ts

@@ -2,14 +2,18 @@ import { Injectable } from '@angular/core';
 import { ActivatedRouteSnapshot, Resolve } from '@angular/router';
 import { Mode, NoteExtenderString, NoteSymbol } from '../../util/types';
 
+interface ModeRouteData {
+  note: NoteSymbol,
+  noteExtender: NoteExtenderString,
+  mode: Mode
+}
+
 @Injectable({
   providedIn: 'root'
 })
-export class RouteToModeConfigurationService implements Resolve<any> {
-
-  constructor() { }
+export class RouteToModeConfigurationService implements Resolve<ModeRouteData> {
 
-  resolve(route: ActivatedRouteSnapshot) {
+  resolve(route: ActivatedRouteSnapshot): ModeRouteData {
     return {
       note: route.params.note || NoteSymbol.c,
       noteExtender: route.params.noteExtender || NoteExtenderString.natural,