Bug 34493: Fix indenting in search_indexes.inc

Bug 34493: Fix indenting in search_indexes.inc

Bug 32683 broke indenting in koha-tmpl/intranet-tmpl/prog/en/includes/search_indexes.inc
Not on purpose looks like.

Test plan :
1) Look at changes to validate indenting
2) Run prove xt/tt_valid.t

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit fc2dc973f0beca5e30777a465aece074a29682ae)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>