### Acceptance criteria

Extract the following functionality from the `BacklogComponent` and meetings components into a reusable `BorderBoxList` component.

* action menus for header and rows (B/M)

* optional reordering via drag and drop (B/M)

* optional reordering via row (action) menu (B/M) Begin of the insertion

* optional collapsible headers (B/M)

* enhancements for responsiveness (e.g. showing description on one or multiple rows depending on viewport) (B)

* optimised for display of work packages  - using `InfoLinecomponent` (B/M) (implemented as a slot)End of the insertion


Key:

* B - supported by Backlogs

* M - supported by Meetings


`BorderBoxTable` is a similar component, but with table semantics. It does not support sorting and currently requires manual integration of action menus. We may replace `BorderBoxTable` with `DataTable` in the future (see ##70204)

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#### Out of scope

* Begin of the deletion optional collapsible headers (B/M)

* enhancements for responsiveness (e.g. showing description on one or multiple rows depending on viewport) (B)

* End of the deletion editable header titles (B/M)

* optional moving via row (action) menu (B)

* optional moving via drag and drop (B) Begin of the deletion

* optimised for display of work packages &nbsp;- using `InfoLinecomponent` (B/M) (implemented as a slot)End of the deletion