GF-4 (#4) Start work on main layout

app/components/ui/sidebar/SidebarMenuSkeleton.vue

@@ -0,0 +1,31 @@
+<script setup lang="ts">
+import type { HTMLAttributes } from "vue";
+import { computed } from "vue";
+import { cn } from "@/lib/utils";
+import { Skeleton } from "@/components/ui/skeleton";
+
+const props = defineProps<{
+  showIcon?: boolean;
+  class?: HTMLAttributes["class"];
+}>();
+
+const width = computed(() => {
+  return `${Math.floor(Math.random() * 40) + 50}%`;
+});
+</script>
+
+<template>
+  <div
+    data-slot="sidebar-menu-skeleton"
+    data-sidebar="menu-skeleton"
+    :class="cn('flex h-8 items-center gap-2 rounded-md px-2', props.class)"
+  >
+    <Skeleton v-if="showIcon" class="size-4 rounded-md" data-sidebar="menu-skeleton-icon" />
+
+    <Skeleton
+      class="h-4 max-w-(--skeleton-width) flex-1"
+      data-sidebar="menu-skeleton-text"
+      :style="{ '--skeleton-width': width }"
+    />
+  </div>
+</template>