Prefix Kibana browser title with cluster name or other identifier

[bczifra]

Describe the feature:
It would be helpful if the browser tab title was prefixed with the cluster name or some other identifier.
Currently it looks like this:

With multiple tabs open it can look like:

Describe a specific use case for the feature:
When multiple Kibana tabs are open in the browser and those Kibana instances are pointing to different clusters, it can be difficult to navigate between the tabs. If the tab titles were prefixed with the cluster name or some other identifier, it would be easier to differentiate between them.

[elasticmachine]

Pinging @elastic/kibana-app

[timroes]

I am closing this in favor of #35210.