add

src/app/modules/homepage/homepage/home-page.component.html

@@ -6,13 +6,13 @@
   <div class="sound-group">
     <h2>WHISTLE TIME: {{timeEffect1}}s</h2>
     <div class="volume-group">
-      <app-silder-range  [value]="timeEffect1" (valueChange)="timeEffect1 = $event" ></app-silder-range>
+      <app-slider-range  [value]="timeEffect1" (valueChange)="timeEffect1 = $event" ></app-slider-range>
     </div>
   </div>
   <div class="sound-group">
     <h2>24-HOUR ZONE ALARM TIME: {{timeEffect2}}s</h2>
     <div class="volume-group">
-      <app-silder-range  [value]="timeEffect2" (valueChange)="timeEffect2 = $event" ></app-silder-range>
+      <app-slider-range  [value]="timeEffect2" (valueChange)="timeEffect2 = $event" ></app-slider-range>
     </div>
   </div>