load wallpapers from app.vue

src/App.vue

@@ -122,7 +122,16 @@ export default {
       });
     },
 
+    loadWallpapers() {
+      this.$store.dispatch('LOAD_WALLPAPERS')
+        .catch(() => {
+          this.$bvToast.toast('There was an error loading wallpapers', { title: 'Error', variant: 'danger' });
+        });
+    },
+
     syncData() {
+      this.loadWallpapers();
+
       // TODO: track progresses as well
       // TODO: move to actions
       db.collection('lists').doc(this.userId)