Add translations for stock quantity

lang/en/texts.php

@@ -5176,6 +5176,7 @@ $LANG = array(
     'email_delivered' => 'Email Delivered',
     'log' => 'Log',
     'classification' => 'Classification',
+    'stock_quantity' => 'Stock :quantity',
 ); 
 
 return $LANG;

tests/Unit/GeneratesCounterTest.php

@@ -40,6 +40,8 @@ class GeneratesCounterTest extends TestCase
     use MakesHash;
     use MockAccountData;
 
+    public $faker;
+    
     protected function setUp() :void
     {
         parent::setUp();