feat : ajout loader skeleton

frontend/components/ui/UiSkeletonBlock.vue

@@ -0,0 +1,22 @@
+<template>
+    <div
+        :class="['animate-pulse', rounded, customClass]"
+        :style="{ width, height, background }"
+    />
+</template>
+
+<script setup lang="ts">
+withDefaults(defineProps<{
+    width?: string
+    height?: string
+    rounded?: string
+    background?: string
+    customClass?: string
+}>(), {
+    width: '50%',
+    height: '1rem',
+    rounded: 'rounded-md',
+    background: '#e5e7eb',
+    customClass: ''
+})
+</script>