Stock Projected Qty Item Group Filter  (#15340)

* Update stock_projected_qty.js

* Update stock_projected_qty.js

* Update stock_projected_qty.py

* Update stock_projected_qty.js
diff --git a/erpnext/stock/report/stock_projected_qty/stock_projected_qty.js b/erpnext/stock/report/stock_projected_qty/stock_projected_qty.js
index 937c0a2..51b9b0c 100644
--- a/erpnext/stock/report/stock_projected_qty/stock_projected_qty.js
+++ b/erpnext/stock/report/stock_projected_qty/stock_projected_qty.js
@@ -27,10 +27,16 @@
 			}
 		},
 		{
+			"fieldname":"item_group",
+			"label": __("Item Group"),
+			"fieldtype": "Link",
+			"options": "Item Group"
+		},
+		{
 			"fieldname":"brand",
 			"label": __("Brand"),
 			"fieldtype": "Link",
 			"options": "Brand"
 		}
 	]
-}
\ No newline at end of file
+}
diff --git a/erpnext/stock/report/stock_projected_qty/stock_projected_qty.py b/erpnext/stock/report/stock_projected_qty/stock_projected_qty.py
index 89a256c..3e6e5a5 100644
--- a/erpnext/stock/report/stock_projected_qty/stock_projected_qty.py
+++ b/erpnext/stock/report/stock_projected_qty/stock_projected_qty.py
@@ -39,6 +39,9 @@
 
 		if filters.brand and filters.brand != item.brand:
 			continue
+			
+		elif filters.item_group and filters.item_group != item.item_group:
+			continue
 
 		elif filters.company and filters.company != company:
 			continue