Move Board delete to board configuration modal

• Relocate the "Delete board" option to be within the "Configure board" modal (currently this is in the board selection drown).
  • cf. #450757[Board_View___Configure_Modal.png]
• Introduce ability to add a new list in-between current lists
  • cf. #450757[Board_View___New_List_Options.png]
  • Moved to #462515 (closed)