Fix modules with "return" outside of function

[MAILPOET-1829]

assets/js/src/settings/tabs.js

@@ -3,10 +3,7 @@ import jQuery from 'jquery';
 import mp from 'mailpoet';
 
   var MailPoet = mp;
-    if (jQuery('#mailpoet_settings').length === 0) {
-      return;
-    }
-
+  if (jQuery('#mailpoet_settings').length > 0) {
     MailPoet.Router = new (Backbone.Router.extend({
       routes: {
         '': 'defaultRoute',
@@ -79,3 +76,4 @@ import mp from 'mailpoet';
     jQuery(document).ready(function () { // eslint-disable-line func-names
       if (!Backbone.History.started) Backbone.history.start();
     });
+  }

assets/js/src/subscribers/importExport/export.js

@@ -3,15 +3,15 @@ import jQuery from 'jquery';
 import MailPoet from 'mailpoet';
 import Handlebars from 'handlebars';
 
-    if (!jQuery('#mailpoet_subscribers_export').length) {
-      return;
-    }
     jQuery(document).ready(function documentReady() {
       var segmentsContainerElement;
       var subscriberFieldsContainerElement;
       var nextStepButton;
       var renderSegmentsAndFields;
       var subscribersExportTemplate;
+      if (!jQuery('#mailpoet_subscribers_export').length) {
+        return;
+      }
       if (!window.exportData.segments) {
         return;
       }