View issues when checkout_date > start_date

[orenyk]

This is a slight consequence of #1389 (although it would also be problematic if an admin currently edited a reservation start date after checkout or we gave patrons a grace period following the start date to check out equipment). If you view the reservation page when the checkout date is later than the start date, the progress bar on top still starts on the start date. This would be further complicated in cases where the checkout date was later than the due date, but I'm not sure how we'd best visually represent that case. We might want to resolve this by adding additional validations to prevent such cases from happening, so this issue will be the place for that discussion.

[AlanLiu96]

Moving to wishlist after discussion w/ @orenyk. Maybe put in larger progress bar overhaul.