Bug 21427: Format prices on ordered/spent lists consistently

Bug 21427: Format prices on ordered/spent lists consistently

Some price information on the spent and ordered list already
used the $Price filter. With this patch all amounts should be
formatted according to the CurrencyFormat system preference.

Signed-off-by: Jack Kelliher <jke0429@stacmail.net>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
(cherry picked from commit 209570f89d050f22fa90eed6a8a70ad9eb56e8a2)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>