implement a template sidebar
add a sidebar functionality
implement sidebar render method
add items to sidebar config
add a template repository class with a sidebar method
add a template facade
enhance sidebar layout for sublinks
implement the actual sidebar in the masterview
add a breadcrumb class
implement a breadcrumb render method
minor enhancement to the breadcrumb style
add the breadcrumb to the repository construction + implement crumb method
implement crumb in instellingen view
implement crumb in instellingen mantelzorgers view
remove the subnav in the controllers
enhance instellingen mantelzorgers view
minor translations
add crumbs to all instellingen pages
add minor language lines
add sublinks for gebruikers section