Ability to favorite databases similar to tables

Is your feature request related to a problem? Please describe.

We have some database servers with literally hundreds of databases. It would only make sense to be able to "star" databases similar to the favorite tables feature.

Describe the solution you'd like

• feature can be enabled/disabled in config
• star/button to add a database to one's favourites (probably stored in localstorage like the favorited tables)
  • displayed in the database list view (server_databases.php) AND/OR
  • in the navigation directly next to the database
• additional icon in the navigation. e.g. left from the "reload navigation panel" button - to show the starred databases OR like the favorited tables in a dropdown (maybe even in the same?)

Describe alternatives you've considered

Apparently there isn't even a single tool like MySQL Workbench or HeidiSQL with a feature like this.

Additional context

I don't have the time at the moment to implement this, but I am going to if circumstances change. If anybody else is starting on this, please comment on this issue.

Start with server_databases.php and the existing favorited-tables feature, including its localStorage behavior. Compare the database list and navigation views, then define the scope before implementing configuration, starring, and a way to display starred databases.