* admin: raise nested modals above the ones already open
Bootstrap gives every modal and every backdrop the same z-index, so a
modal opened while another is showing paints behind it and its buttons
cannot be clicked. Viewing an access key secret and then copying a field
left the confirmation stuck behind the details modal with no way to
dismiss it.
Give each nested modal, and the backdrop Bootstrap creates for it, a
z-index above what is already on screen, and put back the scroll lock
that Bootstrap drops as soon as any one of them closes.
* admin: confirm clipboard copies with a toast
The access key details modal offers three copy buttons, and each one
raised a modal that had to be dismissed before the next copy. Confirm
with a toast instead, so the credentials stay in view and nothing has to
be clicked away.
Chris LuandGitHub
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