[Drilldowns] improve dashboard link generator to support dashboard-to-dashboard drilldown

[Dosant]

Summary

Part of #61230
Originally done in dashboard to dashboard drilldown pr: #60087, but extracting into separate pr

This pr:

1. Leverage info if filter is pinned or not to decide if to put it into _a or _g param
2. Support for refresh interval in _g
3. For sanity, clean up empty keys.

Testing

Not sure how to real world test it, as it will be actually used in #60087

Checklist

Delete any items that are not applicable to this PR.

• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios
• This was checked for keyboard-only and screenreader accessibility
• This renders correctly on smaller devices using a responsive layout. (You can test this in your browser
• This was checked for cross-browser compatibility, including a check against IE11

For maintainers

• This was checked for breaking API changes and was labeled appropriately

[elasticmachine]

Pinging @elastic/kibana-app-arch (Team:AppArch)

[stacey-gammon]

lgtm

[Dosant]

@elasticmachine merge upstream

[Dosant]

@elasticmachine merge upstream

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 1b4f83b

History

• 💚 Build #37057 succeeded 0c9a324
• 💚 Build #36490 succeeded 0d6289e
• 💔 Build #36257 failed ba21df6

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream