hotfix: Add proper header to 'Vendor and Accounting' translation entry

- Fix translation file format error that was causing module update failures
- Add required module and arch_db comments for proper .po file structure

odex25_purchase/purchase_requisition_custom/i18n/ar_001.po

@@ -2976,6 +2976,8 @@ msgstr "أدخل مبررات طلب الشراء..."
 msgid "Enter additional notes..."
 msgstr "أدخل ملاحظات إضافية..."
 
+#. module: purchase_requisition_custom
+#: model_terms:ir.ui.view,arch_db:purchase_requisition_custom.purchase_request_form
 msgid "Vendor and Accounting"
 msgstr "المورد والمحاسبة"