add option header for lists as 'id' or 'firstheader'

* added another option. so the header of list views can be rendered as pageID or as the first header of the page: `~~TODOLIST header:id|firstheader~~`
* added default values for new option to Configuration Manager
* translation DE and EN  for new option for Configuration Manager
* bugfix: do not render text as clickable if the checkbox is not shown
* set actual date in  `plugin.info.txt`