Enhancement: Resolve load clip as managed item in MediaPool instead of in Timeline

Is there an existing issue for this?

[X] I have searched the existing issues.

Please describe the feature you have in mind and explain what the current shortcomings are?

Currently the Clip Loader tags the Timeline clip as managed container whereas it might make more sense to instead tag the Item in the media pool. By doing so it would allow just dragging the clip from the media pool to behave as if it is the managed clip as well instead of always have to do "load" via the Loader to add a copy of it into your timeline,

How would you imagine the implementation of the feature?

Tag and list the containers from MediaPool items instead of from the active/current Timeline.

Are there any labels you wish to add?

[X] I have added the relevant labels to the enhancement request.

Describe alternatives you've considered:

I believe I once prototyped a version here: https://github.com/ynput/OpenPype/pull/4976

Additional context:

Originally reported here

[cuID:OP-7089]

ynput / OpenPype

Enhancement: Resolve load clip as managed item in MediaPool instead of in Timeline #5680