Bug 36671: Reindent item transfer template (branchtransfers.tt)

Bug 36671: Reindent item transfer template (branchtransfers.tt)

This patch reindents the item transfer template so that it has
consistent indentation, with tab indentation coverted to space.

To test, apply the patch and go to Circulation -> Transfer. Test some
transfers, including transfers which trigger a hold notification.
Everything should work correctly.

If you view the diff while ignoring whitespace the only changes should
be places where line breaks were introduced.

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>