modal class->fc

[jackkav]

Highlights

• modal.show() had args but they didn't do anything, however modal classes using <Modal have a show function with args 38 of the file changes are introducing the type ModalHandle to the 38 files that use the modal ref.

Uncertainties

• there's an onHide function on the Modal class that doesn't appear to do anything - removed
• theres a dom walker that searches up 5 parent elements to find the close button attribute
• there a force refresh that could probably be removed with some experimentation
• theres a an one-off option isOpen that could be removed if request switcher modal used isModalVisible rather than this one-off

EDIT: onHide may still have a purpose. Considering back out of this change.