Bug 24124: Fix authorities selection in batch deletion tool in Chrome

Bug 24124: Fix authorities selection in batch deletion tool in Chrome

This patch adds some inline CSS to force clearing on some elements in
the forms for batch record modification and deletion. The problem with
selecting the "Authorities" radio button stemmed from the fact that
non-clearing floats caused elements to invisibly overlap in the form.

To test, apply the patch and test both batch record modification and
batch record deletion. Upon selecting the "Authorities" radio button in
each case the "Select a list of records" tab should disappear. Selecting
the "Biblios" option should re-display the tab.

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>