[TASK] div around search word

- div with css class 'tx-indexedsearch-info-sword' added, to style or hide
this with csc
- only show info about search word if any result is found (as the search
word is already shown in the input field)

Releases: master
Resolves: #82076
Change-Id: I734b84d8e07823ba9a7ed1d2aa86108352139616
Reviewed-on: https://review.typo3.org/53673


Reviewed-by: Henning Liebe <h.liebe@neusta.de>
Tested-by: Henning Liebe <h.liebe@neusta.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Tested-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Tested-by: Susanne Moog <susanne.moog@typo3.org>