fix : style global de l'app

frontend/layouts/default.vue

@@ -1,5 +1,5 @@
 <template>
-    <div class="min-h-screen bg-white text-neutral-900">
+    <div class="min-h-screen bg-white text-neutral-900 flex flex-col">
         <header class="w-full border-b border-neutral-200 bg-primary-500">
             <div class="flex w-full items-center justify-center px-6 py-4">
                 <button
@@ -20,10 +20,11 @@
                             Accueil
                         </a>
                     </NuxtLink>
-                    <NuxtLink to="/admin/dashboard" custom v-slot="{ href, navigate, isActive }">
+                    <NuxtLink to="/admin/dashboard" custom v-slot="{ href, navigate, isExactActive }">
                         <a
                             :href="href"
                             @click="navigate"
+                            :class="isExactActive ? 'opacity-100' : 'opacity-50'"
                         >
                             Admin
                         </a>
@@ -97,7 +98,7 @@
                 </aside>
             </transition>
         </header>
-        <main class="mx-auto w-full max-w-[1280px] pb-0">
+        <main class="mx-auto w-full max-w-[1280px] flex-1 pb-0">
             <slot/>
         </main>
         <footer class="w-full mt-8 bg-primary-500 p-6">