Fix modal event-listeners during dismiss click

Partially regression of #36401.

Fixes modal listeners in order to:

• ignore clicks on scrollbar
  • mousedown, mouseup listen to scrollbar click
  • click ignores scrollbar click
• ignores clicks that starts inside .modal-dialog, but ends outside of it
• react on clicks that start & end outside .modal-dialog

closes: #36855 (closed)

alternative approach https://github.com/twbs/bootstrap/issues/36855#issuecomment-1206174935