Bug 34647: (follow-up) Minor fixes

Bug 34647: (follow-up) Minor fixes

This patch fixes the functionality of the <select> menu for jumping to a
particular vendor, "Choose a vendor in the list to jump directly to the
right place."

The patch also removes the empty anchor tag on the "Items with no
checkouts" report. It appears to be unused.

Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit f3a069ad7fa1604a5e9996546e6ef8828bd9dc05)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>