fdo#68877: Select "<?>" as Elements window do
fdo#68877: Select "<?>" as Elements window do

Elements Dock needs to have the same behavior of Elements window. After insert some symbol, if
this symbol have some placeholder, select the first placehold to user put some data.

This increases usability of Elements Dock.

Change-Id: Idc57cc6817d94f698632eb938600a55c8f9afbd8
Reviewed-on: https://gerrit.libreoffice.org/5780
Reviewed-by: Thomas Arnhold <5f50a84c1fa3bcff146405017f36aec1a10a9e38@arnhold.org>
Tested-by: Thomas Arnhold <5f50a84c1fa3bcff146405017f36aec1a10a9e38@arnhold.org>

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core