refactor: remove unused page hero components

app/pages/machines.vue

@@ -1,12 +1,6 @@
 <template>
   <main class="container mx-auto px-6 py-8">
-    <!-- Hero Section -->
-    <PageHero
-      title="Gestion des Machines"
-      subtitle="Gérez vos machines industrielles par site et par type."
-      min-height="min-h-[24vh]"
-      max-width="max-w-md"
-    />
+    
 
     <!-- Machines Management -->
     <div class="my-8">
@@ -251,7 +245,6 @@ import { useMachines } from '~/composables/useMachines'
 import { useSites } from '~/composables/useSites'
 import { useMachineTypesApi } from '~/composables/useMachineTypesApi'
 import { useToast } from '~/composables/useToast'
-import PageHero from '~/components/PageHero.vue'
 
 const { machines, loading, loadMachines, createMachineFromType, deleteMachine } = useMachines()
 const { sites, loadSites } = useSites()