Bug 25231: Rename button instead of alert/confirm when replacing record

Bug 25231: Rename button instead of alert/confirm when replacing record

This test plan applies to the basic editor only

To test:
1 - Edit an existing record
2 - Click 'Z3950 Search'
3 - Note the confirmation box
4 - Add a new record
5 - Click 'Z3950 Search'
6 - Note no popup
7 - Apply patch
8 - Edit existing record
9 - Note button now says 'Replace record via Z3950 search'
10 - Add a new blank record
11 - Note the button says 'Z3950 search'
12 - Confirm editing/saving/replacing works as in the past

Signed-off-by: Phil Ringnalda <phil@chetcolibrary.org>
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>