Bug 36295: Space out content blocks in batch record modification

Bug 36295: Space out content blocks in batch record modification

This patch adds a float clearing class to a line break in the batch record modification template to fix a spacing issue in Chrome.

To test apply the patch and go to Cataloging -> Batch record modification

There should be space between the two sections.

Signed-off-by: Caroline Cyr La Rose <caroline.cyr-la-rose@inlibro.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>