update frontend ui, i18n, filters, and deps

frontend/layouts/default.vue

@@ -0,0 +1,30 @@
+<template>
+  <div>
+    <header class="app-header">
+      <div class="container header-content">
+        <NuxtLink class="brand" to="/">MatosBox</NuxtLink>
+        <nav class="nav-links">
+          <NuxtLink to="/objets">{{ t('nav.objets') }}</NuxtLink>
+          <NuxtLink to="/emplacements">{{ t('nav.emplacements') }}</NuxtLink>
+          <NuxtLink to="/categories">{{ t('nav.categories') }}</NuxtLink>
+          <NuxtLink to="/settings">{{ t('nav.settings') }}</NuxtLink>
+          <NuxtLink to="/debug">{{ t('nav.debug') }}</NuxtLink>
+        </nav>
+      </div>
+    </header>
+
+    <main>
+      <NuxtPage />
+    </main>
+
+    <footer class="app-footer">
+      <div class="container">
+        <small>{{ t('footer.text') }}</small>
+      </div>
+    </footer>
+  </div>
+</template>
+
+<script setup lang="ts">
+const { t } = useI18n()
+</script>