Fix translated string in jinja (#8956)

diff --git a/erpnext/templates/generators/item_group.html b/erpnext/templates/generators/item_group.html
index d710cb0..a2368a4 100644
--- a/erpnext/templates/generators/item_group.html
+++ b/erpnext/templates/generators/item_group.html
@@ -33,14 +33,14 @@
 		</div>
 		<div class="text-center item-group-nav-buttons">
 			{% if frappe.form_dict.start|int > 0 %}
-			<a class="btn btn-default" href="/{{ pathname }}?start={{ frappe.form_dict.start|int - page_length }}">{{ __("Prev") }}</a>
+			<a class="btn btn-default" href="/{{ pathname }}?start={{ frappe.form_dict.start|int - page_length }}">{{ _("Prev") }}</a>
 			{% endif %}
 			{% if items|length > page_length %}
-			<a class="btn btn-default" href="/{{ pathname }}?start={{ frappe.form_dict.start|int + page_length }}">{{ __("Next") }}</a>
+			<a class="btn btn-default" href="/{{ pathname }}?start={{ frappe.form_dict.start|int + page_length }}">{{ _("Next") }}</a>
 			{% endif %}
 		</div>
 		{% else %}
-			<div class="text-muted">{{ __("No items listed") }}.</div>
+			<div class="text-muted">{{ _("No items listed") }}.</div>
 		{% endif %}
 	</div>
 </div>