Bug 21799: Change wording for quantity input field on order receive page

Bug 21799: Change wording for quantity input field on order receive page

Changes the label from "Quantity to receive" to "Quantity ordered".
The label below reads "Quantity received".

To test:
- Order something in acquisition
- Add a new shipment and create an invoice
- Receive an order line
- On the order receive form, check for the labels mentioned above

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>