Bug 36663: Hide specific inner elements, not the whole top pager container

Bug 36663: Hide specific inner elements, not the whole top pager container

1- Enable StaffDetailItemSelection
2- Visit a biblio page:
http://localhost:8081/cgi-bin/koha/catalogue/detail.pl?biblionumber=76
3- Notice there are no table configuration options on the top right (Columns, Export, Configure).
4- Click the "Show filters" link, notice the table configuration options now show, as well as top and bottom pagers, column filter inputs and search input.
5- Disable StaffDetailItemSelection
6- Visit a biblio page:
http://localhost:8081/cgi-bin/koha/catalogue/detail.pl?biblionumber=76
7- Notice that the table configurations options are visible, as well as top and bottom pagers, and search input.
8- Click the "Show filters" link, notice it now only governs the column filter inputs, the other elements mentioned in step 7 are always visible.
9- Apply patches, run yarn css:build
10- Repeat 1 and 2.
11- Notice the table configuration options are shown on the top right, and no other table options exist.

Further testing:
Test clicking hide/show filters
Test with StaffDetailItemSelection enabled/disabled
Test other datatables in other pages

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>