Bug 35284: Add DT delay to kohaTable

Bug 35284: Add DT delay to kohaTable

To test:
* When a specific initComplete exists (general patron search)
* When no specific initComplete exists (cities)

=> KO
* ERM tables display twice the "show X entries" dropdown list
* Column filters are not affected

Signed-off-by: David Cook <dcook@prosentient.com.au>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 3819f4a57c9c208746e7f147ab085c36ccaf7d68)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>