Bug 30747: Make column settings work for otherholdings table using forEach loop

Bug 30747: Make column settings work for otherholdings table using forEach loop

To test:

1. Turn on SeparateHoldings and find a record that has some items at
   different home libraries.
2. Look at the Other holdings(x) tab. Notice there is no Columns tool
   (gear icon).
3. Go to Table Settings, try hiding columns from the otherholdings
   table. You cannot.
4. Apply patch.
5. Now under the Other holdings(x) tab you should see the Columns
   button, it should work.
6. Go back to Table settings and try hiding columns, it should work.
7. Now try uploading an item level cover image, make sure all columns
   are still properly hidden and the Columns tool works
8. Try steps 6 & 7 but with the regular holdings table. Confirm that all
   colums can properly hide.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Included a rename to table_name(s).
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>