add folder icon and add msrun reference to alignment menu

src/core/alignmentgroup.cpp

src/core/alignmentgroup.h

src/gui/edit/edit_settings/edit_settings.ui

...entification_run_list_view/msidentificationlistwindow.cpp

...identification_run_list_view/msidentificationlistwindow.h

src/gui/widgets/Alignment_group_menu/alignmentgroupmenu.cpp

src/gui/widgets/Alignment_group_menu/alignmentgroupmenu.h

src/xtpcpp.qrc