[Time to Visualize] State From Snapshot Share Not Persisted

[ThomThomson]

Kibana version: master

Describe the bug:
Because dashboard panels are no longer in the URL in view mode since 7.8 (#62415), refreshing the browser window when viewing a shared snapshot from a saved dashboard will restore the panels from the saved object. This might make it seem like the snapshot link isn't working - even though opening the snapshot link again will restore the proper state.

Steps to reproduce:

1. Open an existing dashboard, and make a few changes. Do not save
2. Share using the snapshot share feature
3. Open the resulting link in a new browser tab. Your unsaved changes should be reflected
4. Reload the browser
5. The dashboard should appear in the last saved state.

Expected behavior:
When loading a URL from snapshot share, the dashboard app should save the state from the snapshot into the session storage, and treat it as unsaved state.

Suggested fix:
If it's important that the snapshot state persists over reloads, the easiest way to do so would be to ensure that any URL state gets propagated to the session storage. I would want to have #91950 complete before doing this though.

[elasticmachine]

Pinging @elastic/kibana-presentation (Team:Presentation)

[ThomThomson]

This was fixed by #97941. State from the URL now overrides saved object state, and is loaded into the session storage so it persists over reloads.