fix : corrections de tous les retours + modification de la seed et fixtures

frontend/pages/admin/supplier/[[id]].vue

@@ -5,13 +5,13 @@
                 {{ supplierId ? "Modifications du fournisseur" : "Ajout d'un fournisseur" }}
             </h1>
 
-            <button
+            <UiButton
                 class="text-xl uppercase bg-primary-500 text-white h-[50px] w-[272px]"
                 type="submit"
                 :disabled="isLoading || !auth.isAdmin"
             >
                 {{ supplierId ? "Sauvegarder" : "Ajouter" }}
-            </button>
+            </UiButton>
         </div>
 
         <div class="grid grid-cols-2 gap-y-8 gap-x-80 mb-10 py-12">
@@ -23,14 +23,14 @@
         <div class="mx-24 mb-4 py-6 border-t border-black"></div>
         <div class="flex items-center justify-between mb-4">
             <h2 class="text-3xl font-bold uppercase">Adresses fournisseur</h2>
-            <button
+            <UiButton
                 type="button"
                 class="text-xl uppercase bg-primary-500 text-white h-[50px] w-[272px]"
                 :disabled="supplierId === null || !auth.isAdmin"
                 @click="goToAddAddress"
             >
                 Ajouter
-            </button>
+            </UiButton>
         </div>
         <div class="overflow-x-auto mb-10">
             <table class="w-full border-collapse">