Bug 10220 IDs on checkin columns

Test: go to Circulation > Check in, table has ID and each column has a
class.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Adds a class to every th and td element in the check-in table.
Works as describe, no regressions found.

Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Amended patch: Replace some tab with spaces.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>