FEATURE: Go to next and previous diagnostic support

[Kaiser-Yang]

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Did you check the docs?

• [X] I have read all the docs.

Is your feature request related to a problem? Please describe.

I can use some commands to navigate to diagnostic, even if it is in a directory which is not expanded yet:

Describe the solution you'd like.

something like next_diag_item and prev_diag_item.

Describe alternatives you've considered.

No response

Additional Context

No response