[fix] Allow dashboard viewer auto refresh dashboard

[graceguo-supercat]

CATEGORY

Choose one

• Bug Fix
• Enhancement (new features, refinement)
• Refactor
• Add tests
• Build / Development Environment
• Documentation

SUMMARY

before #7248, dashboard viewers and owners can auto refresh dashboard periodically, but this refresh frequency can not be saved into dashboard metadata. In #7248, dashboard owner can change refresh frequency and save it as part of dashboard metadata, so that next time viewer open dashboard, it will auto-refresh per owner's setting. But in this PR, viewers lost their options to change refresh frequency, even they doesn't want to change owner's setting. There are some cases where dashboard owner didn't set auto refresh, but viewers still want to auto refresh during current visit.

This PR added back this feature:

• dashboard viewers can trigger auto refresh for this visit, but this change won't persist.
• In edit mode, if dashboard owner changes auto refresh frequency, this change will be saved into dashboard metadata.

AFTER SCREENSHOTS OR ANIMATED GIF

Dashboard viewers will see menu Auto-refresh dashboard:

In edit mode, dashboard owners will see Set auto-refresh interval:

TEST PLAN

CI, and manual test.

REVIEWERS

@betodealmeida @khtruong
@michellethomas @etr2460

[kristw]

• Dashboard viewers will see menu Auto-refresh dashboard:
  Can they click? What does it do?

• Dashboard owners will see Set auto-refresh interval:
  Does this bring up another dialog or what happen? If brings up another dialog may be add ...
  Should the label be "Enable auto-refresh" instead of "Set auto-refresh interval" if it is just enable or not? The latter made it feel you have the ability to set the interval value.

[graceguo-supercat]

• Dashboard viewers will see menu Auto-refresh dashboard:
  Can they click? What does it do?

Yes.

• Dashboard owners will see Set auto-refresh interval:
  Does this bring up another dialog or what happen? If brings up another dialog may be add ...
  Should the label be "Enable auto-refresh" instead of "Set auto-refresh interval" if it is just enable or not? The latter made it feel you have the ability to set the interval value.

Nothing extra to be enabled in edit mode. Edit mode can persist the change. After this fix, auto refreshing dashboard should be enabled for viewers and owners. But only owner has ability to save.

[betodealmeida]

Thanks for fixing this, @graceguo-supercat!