chore: added RFQ Link to Opportunity Dashboard (#30894)

added Link to Dashboard

added backlink to Request for Quotation in the Quotation dashboard for transparency and ease of navigation.

(cherry picked from commit c4a2778359)

erpnext/crm/doctype/opportunity/opportunity_dashboard.py

@@ -2,6 +2,6 @@ def get_data():
 	return {
 		"fieldname": "opportunity",
 		"transactions": [
-			{"items": ["Quotation", "Supplier Quotation"]},
+			{"items": ["Quotation", "Request for Quotation", "Supplier Quotation"]},
 		],
 	}