fix(member): close actions menu when scrolling members

[mejo-]

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[nickvergessen]

At least prevents the menu from being visible while scrolled away.
But could also set the container/parent (@Antreesy might be able to point you into the right places)

[Antreesy]

container is needed to mount popover in specific place (useful for popover inside of modal to keep correct order): https://floating-vue.starpad.dev/api/#container

boundary (boundaries-element in NcActions) fits better here, but i haven't tested it yet with scrolling lists: https://floating-vue.starpad.dev/api/#boundary

[mejo-]

boundary (boundaries-element in NcActions) fits better here, but i haven't tested it yet with scrolling lists: https://floating-vue.starpad.dev/api/#boundary

That would probably be $parent.$parent.refs.memberPickerList (the div.member-picker-list element) in this case as it's the one that has the scroll container. Unfortunately passing this as :boundaries-element property to NcActions doesn't solve the problem at hand.