modify variable name

packages/app/src/client/services/PageContainer.js

@@ -495,7 +495,7 @@ export default class PageContainer extends Container {
     if (!res.ok) {
       throw new Error(res.error);
     }
-    if (res.isPageNotUptable) {
+    if (res.isPageNotUpdatable) {
       const err = new Error();
       err.data = res.data;
       throw err;

packages/app/src/server/routes/page.js

@@ -858,7 +858,7 @@ module.exports = function(crowi, app) {
         userName: latestRevision.author.name,
         userImgPath: latestRevision.author.imageUrlCached,
       };
-      return res.json(ApiResponse.success({ isPageNotUptable: true, data: revisions }));
+      return res.json(ApiResponse.success({ isPageNotUpdatable: true, data: revisions }));
     }
 
     const options = { isSyncRevisionToHackmd };