feat : ajout loader skeleton

frontend/components/skeleton/skeletonTable.vue

@@ -0,0 +1,13 @@
+<template>
+    <div class="ps-20">
+        <UiSkeletonBlock height="48px" class="my-4"/>
+        <div class="grid grid-cols-3 justify-evenly bg-slate-100 py-4">
+            <UiSkeletonBlock v-for="i in 3"/>
+        </div>
+        <div
+            class="grid grid-cols-3 gap-4 px-4 py-4 text-sm hover:bg-slate-50 cursor-pointer border-t border-slate-200"
+            v-for="i in 3">
+            <UiSkeletonBlock v-for="i in 3"/>
+        </div>
+    </div>
+</template>