Feature: #9070 - Allow translation of index configuration titles

See Issue #9070

Description

Indexed search plugin allows to select specifically which index configuration to be queried from in the specific form, where a dropdown shows all possible indexing configurations.

Impact

It is now possible to add a label for each configuration via TypoScript in each language.

plugin.tx_indexedsearch.settings._LOCAL_LANG {
   de.indexingConfigurations.13 = Mein Titel in Deutsch für Konfiguration 13
   de.indexingConfigurationHeader.13 = Alle Ergebnisse für Konfiguration 13
}