Vfolder list in model service launcher shows deleted vfolder(s)

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What Operating System(s) are you seeing this problem on?

Linux (x86-64)

Backend.AI version

24.03.2

Describe the bug

Users can see the model-folder already in delete-status, which would bring error when executing model-service.

To Reproduce

NOTE: The version must support model-serving feature.

1. Go to Data & Storage Menu.
2. Create a VFolder with model Usage mode.
3. Delete VFolder just created in step 2 by clicking trash bin icon in controls section.
4. Go to Serving Menu.
5. Click Start Service button.
6. Click Model storage to mount Select UI.
7. See the error.

Expected Behavior

No response

Anything else?

No response