add js for newsletter

themes/custom/envigo/js/override.js

@@ -91,4 +91,7 @@
                 }]
 
             });
+
+            $("#simplenews-subscriptions-block-226b1abd-464c-4b6e-b0d2-301af005f689 input").attr('placeholder', 'Subcribe our newslatter');
+            $("#edit-subscribe").html('Submit');
     })(jQuery);
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