Add thumbnails to templates

[MAILPOET-922]

lib/Config/PopulatorData/Templates/AppWelcome.php

@@ -409,6 +409,7 @@ class AppWelcome {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/app-welcome-email.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/BurgerJoint.php

@@ -491,6 +491,7 @@ class BurgerJoint {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/burger-joint.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/ChocolateStore.php

@@ -840,6 +840,7 @@ class ChocolateStore {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/chocolate-store.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/CoffeeShop.php

@@ -417,6 +417,7 @@ class CoffeeShop {
   }
 
   private function getThumbnail() {
+    return '//ps.w.org/mailpoet/assets/newsletter-templates/franks-roast-house/coffee-shop.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/Discount.php

@@ -461,6 +461,7 @@ class Discount {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/discount.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/Faith.php

@@ -482,6 +482,7 @@ class Faith {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/faith.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/FestivalEvent.php

@@ -518,6 +518,7 @@ class FestivalEvent {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/festival-event.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/KickOff.php

@@ -715,6 +715,7 @@ class KickOff {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/sports.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/NewsDay.php

@@ -549,6 +549,7 @@ class NewsDay {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/news-day.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/PieceOfCake.php

@@ -438,6 +438,7 @@ class PieceOfCake {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/piece-of-cake.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/ScienceWeekly.php

@@ -671,6 +671,7 @@ class ScienceWeekly {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/science-weekly.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/Shoes.php

@@ -573,6 +573,7 @@ class Shoes {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/shoes.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/TakeAHike.php

@@ -763,6 +763,7 @@ class TakeAHike {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/take-a-hike.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/TravelNomads.php

@@ -597,6 +597,7 @@ class TravelNomads {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/travel-nomads.jpg';
   }
 
 }

lib/Config/PopulatorData/Templates/WorldCup.php

@@ -779,6 +779,7 @@ class WorldCup {
   }
 
   private function getThumbnail() {
+    return $this->template_image_url . '/world-cup.jpg';
   }
 
 }