no issue
- we don't want accidental background clicks closing this modal as it contains complex UI rather than a simple notification
- the members import modal is still using the old/outdated modal pattern so there was no option for disabling background click, went with a quick-fix for now rather than updating everything to our modern modal patterns
- added passthrough of arguments to the `close` action on `<GhFullscreenModal>`
- updated `<GhFullscreenModal>` background click handler to pass "background" as an action argument
- updated the action used for handling members import modal closing to skip closing when it receives "background" as the first argument
43b76056ca