Drag and drop inconsistent look and feel

[enkelmedia]

Which Umbraco version are you using?

v16.1.0

Bug summary

Currently, the style of the "drag-placeholder" is different for different scenarios in the backoffice. Most pickers looks like this:

While the e.g. the Block List and Block Grid implements a more clear placeholder, I purposing that we should update to this look:

Which would be consistent with how the Block List and Block Grid is implemented.

Specifics

• Update document picker to align with the look and feel: #19736 adjust drag placeholder for document picker #19737
• Update umb-input-multi-url
• Update umb-input-member
• Update umb-input-member-group
• Update umb-user-input
• Update umb-input-static-file

... maybe more?

A problem here is that there is something wrong with umb-input-multi-url because the drag-placeholder attribute is "stuck" on the initially dragged element. I've tried to get this to work without any luck so far.

[github-actions]

Hi there @enkelmedia!

Firstly, a big thank you for raising this issue. Every piece of feedback we receive helps us to make Umbraco better.

We really appreciate your patience while we wait for our team to have a look at this but we wanted to let you know that we see this and share with you the plan for what comes next.

• We'll assess whether this issue relates to something that has already been fixed in a later version of the release that it has been raised for.
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• We'll replicate the issue to ensure that the problem is as described.
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[bjarnef]

I think it is also relevant to umb-table with sortable attribute which sort table rows. Used in sortable dialog of content/media nodes.

I think it may be worth considering draggable handle as for colors in approved color picker.
Ideally it should be possible to sort/re-arrange items as with keyboard only.

I think HQ need some discussions regarding this #19515 but I think there are some great thought about it here: https://www.darins.page/articles/designing-a-reorderable-list-component