hide add feature button if no feature_type

src/views/feature/Feature_list.vue

@@ -38,7 +38,11 @@
           </div>
 
           <div
-            v-if="project && feature_types && permissions.can_create_feature"
+            v-if="
+              project &&
+              feature_types.length > 0 &&
+              permissions.can_create_feature
+            "
             class="item right"
           >
             <div