Bug 9807: (follow-up) reindent basketgroup.tt

Bug 9807: (follow-up) reindent basketgroup.tt

Basketgroup.tt is very hard to read. This patch simply reindents it.
No visible changes expected

Regression test :
- check the list of opened and closed basketgroups for a vendor is
  displayed properly
- check an individual basketgroup (closed and opened) is displayed
  properly
- check you can edit a basketgroup and save changes
- check you can print and export a basketgroup
- check you can close and reopen a basketgroup

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>