[FEATURE] Sort relational content with default order

When creating new relations, items should be ordered
with default order in the pop-up window.

Change-Id: I6ec6e8a3de8a87281dfc3ab6fc8948706dc5b746
Releases: 0.2.0
Fixes: #53319
[FEATURE] Add loading effect

Change-Id: I078cae0a97745fafae2f301384ad9a54b94a29dd
Releases: 0.2.0
Resolves: #53333