feat(slider): add slider feature

frontend/spa/src/main.js

@@ -16,6 +16,7 @@ import 'swiper/element/bundle';
 import 'swiper/css/bundle';
 import AppLoading from "@/AppLoading.vue";
 import {useProductFiltersStore} from "@/stores/ProductFiltersStore.js";
+import {useSlidersStore} from "@/stores/SlidersStore.js";
 register();
 
 const pinia = createPinia();
@@ -26,6 +27,7 @@ app
     .use(VueTelegramPlugin);
 
 const settings = useSettingsStore();
+useSlidersStore().fetchMainpageSlider();
 
 const appLoading = createApp(AppLoading);
 appLoading.mount('#app');