fix(ui): support select single resource to sync

[linghaoSu]

Fixes #21578

Some resources are not listed in the sync panel, making them unavailable for selection using query parameters. However, we can locate these resources' parentRef and, based on that information, identify and sync the target resources effectively.

Before

single-before.mp4

After

sync-after.mp4

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
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[crenshaw-dev]

Thanks for the PR! I suggested a slightly different approach here: #21578 (comment)

[linghaoSu]

Thanks for the PR! I suggested a slightly different approach here: #21578 (comment)

Thank you for the review! I’ve implemented the suggested approach. Could you please review it again? Your feedback is much appreciated.