fix s a modifications

src/views/project/Project_detail.vue

@@ -53,7 +53,7 @@
             <div class="content">
               {{ project.title }}
               <div v-if="arraysOffline.length > 0">
-                {{ arraysOffline.length }} modifications en attente
+                {{ arraysOffline.length }} modification<span v-if="arraysOffline.length>1">s</span> en attente
                 <button
                   :disabled="isOffline()"
                   @click="sendOfflineFeatures()"