Added metadata info panel

[utkarshcmu]

Currently, info show created and updated time. But in the future it can show created by and updated by fields too. Also, this dropdown can be extended to show some other info also in the future.

[utkarshcmu]

This PR adds some features requested in #3047

[utkarshcmu]

Hover on info icon:

Click on info icon:

[torkelo]

not sure this deserves a top bar icon, maybe have the info in the dashboard settings

[utkarshcmu]

Thanks for the review, will make the change asap.

[utkarshcmu]

@torkelo Removed the top bar icon and included metadata in settings dropdown

[utkarshcmu]

New snapshots:

We will be putting more information(created by, updated by, etc) in metadata in the future so it is better to have a separate view for it as show above. :)

[utkarshcmu]

Haha, finally I can access this PR :)

@torkelo Please review/merge this PR. Thanks.

[utkarshcmu]

Is there anything else I can do to get this PR merged? Would be great if we can get this info available in the next release.

Anyway, the next step in this direction will be adding Created by and Updated by fields. :)

[torkelo]

I was thinking that this info would go under a dashboard settings tab, and not a in the settings menu

[utkarshcmu]

Done. Please review/merge.

[utkarshcmu]

Should I add dashboard Id also or this information is sufficient right now to get this feature rolled out?

[utkarshcmu]

@torkelo Will this feature go into 2.6?

[Qtax]

@utkarshcmu the format is hard coded? I would at least prefer the international ISO 8601 format (24h time).

Otherwise this is good information to have accessable.

[utkarshcmu]

@Qtax yes the format is hardcoded right now. We can change it to whtever we want to. I am fine with any format if it shows up to a second's granularity. My main goal for this PR is to know when are these dashboards last modified and when were they created. Which will help us maintaining 100s of dashboards. The next step after this PR will be , who created them and who updated them. I ll try to include these two fields too asap in the same panel as time permits.

[utkarshcmu]

@torkelo What do you think about the hard coded format?

[bergquist]

The placement of such info is hard. If more info are to be added I think a special tab for it makes sense.