Handle untitled note (#592)

* Leave recipe in edit mode in case of an API error

* Initialize recipe note with empty title

Fixes #586

frontend/src/components/Recipe/RecipePageActionMenu.vue

@@ -134,7 +134,6 @@ export default {
           break;
         case SAVE_EVENT:
           this.$emit(SAVE_EVENT);
-          this.$emit("input", false);
           break;
         case JSON_EVENT:
           this.$emit(JSON_EVENT);