Improve code according the review

[MAILPOET-3708]

assets/js/src/newsletters/send/notification.jsx

@@ -60,7 +60,7 @@ let fields = [
       return segment.name;
     },
     getCount: function getCount(segment) {
-      return `${parseInt(segment.subscribers, 10).toLocaleString()}`;
+      return parseInt(segment.subscribers, 10).toLocaleString();
     },
     transformChangedValue: function transformChangedValue(segmentIds) {
       const allSegments = this.getItems();

assets/js/src/newsletters/send/standard.jsx

@@ -160,7 +160,7 @@ let fields = [
       return segment.name;
     },
     getCount: function getCount(segment) {
-      return `${parseInt(segment.subscribers, 10).toLocaleString()}`;
+      return parseInt(segment.subscribers, 10).toLocaleString();
     },
     transformChangedValue: function transformChangedValue(segmentIds) {
       const allSegments = this.getItems();

assets/js/src/newsletters/types/welcome/scheduling.jsx

@@ -27,7 +27,7 @@ const segmentField = {
   placeholder: MailPoet.I18n.t('selectSegmentPlaceholder'),
   forceSelect2: true,
   values: availableSegments,
-  getCount: (segment) => `${parseInt(segment.subscribers, 10).toLocaleString()}`,
+  getCount: (segment) => parseInt(segment.subscribers, 10).toLocaleString(),
   getLabel: (segment) => segment.name,
   getValue: (segment) => segment.id,
 };

assets/js/src/settings/components/segments_select.tsx

@@ -16,7 +16,7 @@ export default (props: Props) => {
   const segments = useSelector(selector)().map((segment) => ({
     value: segment.id,
     label: segment.name,
-    count: `${segment.subscribers}`,
+    count: segment.subscribers,
   }));
 
   const defaultValue = segments.filter((segment) => props.value.includes(segment.value));

lib/Models/Subscriber.php

@@ -168,7 +168,7 @@ class Subscriber extends Model {
       ->whereNull('deleted_at')
       ->count();
     $subscribersWithoutSegmentLabel = sprintf(
-      WPFunctions::get()->__('Subscribers without a list (%s)', 'mailpoet'),
+      __('Subscribers without a list (%s)', 'mailpoet'),
       number_format($subscribersWithoutSegment)
     );
 

lib/Subscribers/SubscriberListingRepository.php

@@ -233,7 +233,7 @@ class SubscriberListingRepository extends ListingRepository {
     $subscribersWithoutSegmentCount = $subscribersWithoutSegmentStats[$key];
 
     $subscribersWithoutSegmentLabel = sprintf(
-      WPFunctions::get()->__('Subscribers without a list (%s)', 'mailpoet'),
+      __('Subscribers without a list (%s)', 'mailpoet'),
       number_format((float)$subscribersWithoutSegmentCount)
     );