fix: add contract to CRM module (#18817)

diff --git a/erpnext/config/crm.py b/erpnext/config/crm.py
index 70784f3..eba6c7a 100644
--- a/erpnext/config/crm.py
+++ b/erpnext/config/crm.py
@@ -41,6 +41,11 @@
 					"name": "Lead Source",
 					"description": _("Track Leads by Lead Source.")
 				},
+				{
+					"type": "doctype",
+					"name": "Contract",
+					"description": _("Helps you keep tracks of Contracts based on Supplier, Customer and Employee"),
+				},
 			]
 		},
 		{