More localization (#358)

* Translate missing items on About page

* Localize import summary dialog

* Make site menu translation reactive

* Localize import options

* Include semi colon in string

* Move API texts to frontend + better status codes

* Provide feedback to user when no meal is planned

* Fix API tests after latest rework

* Add warning for API changes in changelog

* Refactor API texts handling

* Refactor API texts handling #2

* Better API feedback

* Rearrange strings hierarchy

* Add messages upon recipe updated

* Fix 'recipe effected' typo

* Remove snackbar usage in backend

* Translate toolbox

* Provide feedback for tags CRUD

* Fix messed up merge

* Translate sign-up form

* Better feedback for sign-up CRUD

* Refactor log-in API texts handling

* No error message when user is not authenticated

* Remove unimportant console log

frontend/src/pages/Admin/Settings/CreatePageDialog.vue

@@ -82,14 +82,18 @@ export default {
       this.$refs.categoryFormSelector.setInit(this.page.categories);
     },
     async submitForm() {
+      let response;
       if (this.create) {
-        await api.siteSettings.createPage(this.page);
+        response = await api.siteSettings.createPage(this.page);
       } else {
-        await api.siteSettings.updatePage(this.page);
+        response = await api.siteSettings.updatePage(this.page);
+      }
+      
+      if (response) {
+        this.pageDialog = false;
+        this.page.categories = [];
+        this.$emit(NEW_PAGE_EVENT);
       }
-      this.pageDialog = false;
-      this.page.categories = [];
-      this.$emit(NEW_PAGE_EVENT);
     },
   },
 };