fix: Sider + Fields UX

- remove extra space (sider)
- PR: Bring rejected qty in grid view
- PI: Rename `Stock Qty` to `Accepted Qty in Stock UOM`
- PI: Move `Accepted Qty in Stock UOM` under Stock UOM
diff --git a/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json b/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
index d39a9fc..f9b2efd 100644
--- a/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
+++ b/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
@@ -22,10 +22,10 @@
   "received_qty",
   "qty",
   "rejected_qty",
-  "stock_uom",
   "col_break2",
   "uom",
   "conversion_factor",
+  "stock_uom",
   "stock_qty",
   "sec_break1",
   "price_list_rate",
@@ -175,7 +175,8 @@
   {
    "fieldname": "received_qty",
    "fieldtype": "Float",
-   "label": "Received Qty"
+   "label": "Received Qty",
+   "read_only": 1
   },
   {
    "bold": 1,
@@ -223,7 +224,7 @@
   {
    "fieldname": "stock_qty",
    "fieldtype": "Float",
-   "label": "Stock Qty",
+   "label": "Accepted Qty in Stock UOM",
    "print_hide": 1,
    "read_only": 1,
    "reqd": 1
@@ -870,10 +871,11 @@
  "idx": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-09-01 16:04:03.538643",
+ "modified": "2021-11-15 17:04:07.191013",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Purchase Invoice Item",
+ "naming_rule": "Random",
  "owner": "Administrator",
  "permissions": [],
  "sort_field": "modified",
diff --git a/erpnext/controllers/buying_controller.py b/erpnext/controllers/buying_controller.py
index 4ec4df8..6fc040e 100644
--- a/erpnext/controllers/buying_controller.py
+++ b/erpnext/controllers/buying_controller.py
@@ -365,7 +365,7 @@
 				d.received_qty = flt(d.qty) + flt(d.rejected_qty)
 
 			# Check Received Qty = Accepted Qty + Rejected Qty
-			val  = flt(d.qty) + flt(d.rejected_qty)
+			val = flt(d.qty) + flt(d.rejected_qty)
 			if (flt(val, d.precision("received_qty")) != flt(d.received_qty, d.precision("received_qty"))):
 				frappe.throw(_("Accepted + Rejected Qty must be equal to Received quantity for Item {0}").format(d.item_code))
 
diff --git a/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json b/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json
index 3ddb635..30ea1c3 100644
--- a/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json
+++ b/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json
@@ -221,8 +221,10 @@
    "width": "100px"
   },
   {
+   "columns": 1,
    "fieldname": "rejected_qty",
    "fieldtype": "Float",
+   "in_list_view": 1,
    "label": "Rejected Quantity",
    "oldfieldname": "rejected_qty",
    "oldfieldtype": "Currency",
@@ -329,7 +331,7 @@
   },
   {
    "bold": 1,
-   "columns": 3,
+   "columns": 2,
    "fieldname": "rate",
    "fieldtype": "Currency",
    "in_list_view": 1,
@@ -974,7 +976,7 @@
  "idx": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-11-03 17:56:53.916921",
+ "modified": "2021-11-15 15:46:10.591600",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Purchase Receipt Item",