Search and subscribe to new communities

[ravermeister]

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• [x] Is this only a single feature request? Do not put multiple feature requests in one issue.
• [ ] Is this a question or discussion? Don't use this, use https://lemmy.ml/c/jerboa

** Describe the feature request below **

It would be very helpful if it is possible to search for new (yet unknown to the own instance) communities and subscribe to them, IIRC it is currently only possible via the web frontend.