Use zero-based positions on issues board services

app/services/boards/lists/create_service.rb

app/services/boards/lists/move_service.rb

spec/controllers/projects/board_issues_controller_spec.rb

spec/controllers/projects/board_lists_controller_spec.rb

spec/services/boards/issues/list_service_spec.rb

spec/services/boards/issues/move_service_spec.rb

spec/services/boards/lists/create_service_spec.rb

spec/services/boards/lists/destroy_service_spec.rb

spec/services/boards/lists/move_service_spec.rb