fix: cross connect delivery note and sales invoice (backport #36183) (#36457)

fix: cross connect delivery note and sales invoice (#36183)

* fix: cross connect delivery note and sales invoice

* chore: remove unnecessary non_standard_fieldname

(cherry picked from commit 8501a1182ae8323d91438da30ddc8d93cf8c2789)

Co-authored-by: Anand Baburajan <anandbaburajan@gmail.com>
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice_dashboard.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice_dashboard.py
index 0a765f3..6fdcf26 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice_dashboard.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice_dashboard.py
@@ -15,6 +15,7 @@
 		},
 		"internal_links": {
 			"Sales Order": ["items", "sales_order"],
+			"Delivery Note": ["items", "delivery_note"],
 			"Timesheet": ["timesheets", "time_sheet"],
 		},
 		"transactions": [
diff --git a/erpnext/stock/doctype/delivery_note/delivery_note_dashboard.py b/erpnext/stock/doctype/delivery_note/delivery_note_dashboard.py
index b6b5ff4..e66c233 100644
--- a/erpnext/stock/doctype/delivery_note/delivery_note_dashboard.py
+++ b/erpnext/stock/doctype/delivery_note/delivery_note_dashboard.py
@@ -11,6 +11,7 @@
 		},
 		"internal_links": {
 			"Sales Order": ["items", "against_sales_order"],
+			"Sales Invoice": ["items", "against_sales_invoice"],
 			"Material Request": ["items", "material_request"],
 			"Purchase Order": ["items", "purchase_order"],
 		},