Is your feature related to a problem? Please describe

When taking a quick initial look at #2106 (vitest v4) I noticed several minor things that should be cleanup up in the tests:

• Missing mock for getUidGid in Build.spec.ts causing test error output.
• Missing mock for listVMs in CreateVM.spec.ts causing test error output.
• window.ResizeObserver should be mocked once for the package, as Podman Desktop renderer does.
• Incorrect beforeEach import in DiskImagesList.
• Use of NodeJS types causes warning in VS Code.

Describe the solution you'd like

Fix these issues.

Describe alternatives you've considered

No response

Additional context

No response