Bug 32785: Typo: Maximum number of simultaneus pickups per interval (curbside pickups)

Bug 32785: Typo: Maximum number of simultaneus pickups per interval (curbside pickups)

This patch corrects a small typo in the curbside pickup administration
page.

To test:
1. Apply patch
2. Enable the CurbsidePickup system preferences
3. Go to Administration > Curbside pickup
   --> Next to Maximum patrons per interval, the tip should be "Maximum number of simultaneous pickups per interval"

Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>