[dashboard] prevent co-edit error in Dashboard Properties Modal

[graceguo-supercat]

Is your feature request related to a problem? Please describe.
There are a few PRs (and bug fixes) to prevent users edit the same dashboard at the same time: #11220 #11305 and #11614. Right now this feature is kind of stable, but it is not available when user update dashboard metadata in Dashboard Properties modal. Because /dashboard/api/v1 does not check dashboard version in update requests.

Describe the solution you'd like
Is possible that /dashboard/api/v1 PUT request also support dashboard version check, and return last_updated_time in response?

Additional context
maybe @dpgaspar can help?
cc @mistercrunch @eschutho @junlincc

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