feat: update admin page

frontend/admin/src/views/SliderView.vue

@@ -0,0 +1,10 @@
+<template>
+  <Slider v-model="settings.items.sliders.mainpage_slider"/>
+</template>
+
+<script setup>
+import Slider from "@/components/Slider/Slider.vue";
+import {useSettingsStore} from "@/stores/settings.js";
+
+const settings = useSettingsStore();
+</script>