Fixed aesthetic issue on loading animation during upload

vospace-ui-frontend/src/api/server/index.js

@@ -124,7 +124,7 @@ export default {
         parentPath: path,
         files: files
       }
-    });
+    }, false);
   },
   uploadFile(url, file) {
     let formData = new FormData();

vospace-ui-frontend/src/store.js

@@ -183,7 +183,8 @@ export default new Vuex.Store({
           dispatch('setPath', state.path);
         });
     },
-    uploadFiles({ state, dispatch }, files) {
+    uploadFiles({ state, commit, dispatch }, files) {
+      commit('setLoading', true);
       let names = [];
       for (let file of files) {
         names.push(file.name);