refs #17613 [finc: VF5.1] barfs recent acquisitions feature

* use solr instead of ils
** because not every instance has an ils
** because ils driver has not to be configured anymore
** but still use ils on local alpha for demo driver and missing indexExtension

* add finc New Items Plugin and Controller
** use indexExtension to create query for date range

* use radio selects instead of buttons for range
* add label-for options
* add legend and better translations (Choose Period)

* removes styling br
* adds mainbody for styling