[BUGFIX] indexed_search: Correct js for section titles

[BUGFIX] indexed_search: Correct js for section titles

Fixes js error when clicking on the section title
(both pibased and Extbase plugin)
Fix navigation of section menu in Extbase plugin.
Move "Displaying results" text to correct place
(above section menu) in Extbase plugin.

Resolves: #65980
Releases: master, 6.2
Change-Id: I46418ad8ca78f92f332c9ddcbb30d4c3afbd02b9
Reviewed-on: http://review.typo3.org/38119
Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>