Avoid setting createAllowed=false after initialization of versions

When the timing is just right, the result of `createAllowed` setting in
the version autocompleter is performed before the initialization of the
parent ng-select. This results in the createAllowed defaulting back to
false even though it is allowed

do not render duplicate roles in memberships representer

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[31545] Dont submit empty version on backspace

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A user can receive duplicate roles for a membership when being added first as an individual and then again as part of a group.

https://community.openproject.com/wp/31545

Feature/grid d n d to bottom

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[31504] Reload attachments again after coming from list

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[31525] Widgets overlap each other

[31537] Can not inline create versions

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Due to the way the attachments are embedded in HAL, we can end up with
two situations:

1. We load the work package in single-view and attachments are embedded
($loaded = true)

2. We load the work package in the list and attachments are not embedded
($loaded = false)

The attachment-list doesn't properly reload the attachments in the first
case after being initialized. Assume you open the single-view, upload an
attachment and then let the list reload, the work package attachments
will become unloaded since they are contained in the work package
resource and not in a separate state.

We thus have to reload attachments more often to ensure they get
reloaded in this case. The proper solution would be to have attachments
tracked in a separate resource.

https://community.openproject.com/wp/31504

[31531] Fix visiting history wiki content

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https://community.openproject.com/wp/31531

Keep limited size after the drop. Otherwise the end result will differ (and error) from the drag result

fix dragging to outside of grid

AS the code relied on the mousedOverArea, and that area was not set when moving outside of the grid or over another widget, the drop failed. As we no longer rely on the drop even being fired by the receiving grid-area but listen to the drop event on the moved widget area we can get rid of the stop() function which used to complicate things. By that, we can also simplify the abort case and no longer need to maintin the magic `aborted` variable

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[31513] Re-add the parent_id in the SetAttributeService

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https://community.openproject.com/wp/31513

Merge pull request #7820 from opf/fix/31505-Blank-Gantt-chart-shown-when-switching-from-fullscreen-back-to-saved-view

[31505] Blank Gantt chart shown when switching from fullscreen back to saved view

Fix/grid d n d on replacing higher widgets

[31506] Avoid board double submit

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fix resizing multi column widgets