Bug 21364: (follow-up) Check for standing status and uncertain prices

Bug 21364: (follow-up) Check for standing status and uncertain prices

Fetch 'uncertainprices' when getting basket info. A side effect is that styling on baskets with uncertain prices is restored by this bug. They will appear in red

To test:
1 - Add an order with an uncertainprice to the basket
2 - Return to vendor baskets view
3 - Note the actions now include "Uncertain prices"
4 - Click that, resolve the uncertain prcie
5 - Return to vendor basket view
6 - Note you can now close the basket, but don't
7 - Edit the basket, mark it as standing
8 - Return to vendor basket view
9 - Note you cannot close the basket

Signed-off-by: Claire Gravely <claire.gravely@bsz-bw.de>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>