Fix #23: Missing server command

Brings back the funkwhale server command.

funkwhale_cli/cli/__init__.py

@@ -8,6 +8,7 @@ from . import playlists
 from . import tracks
 from . import uploads
 from . import users
+from . import server
 
 from .base import cli
 
@@ -19,6 +20,7 @@ __all__ = [
     "favorites",
     "libraries",
     "playlists",
+    "server",
     "tracks",
     "uploads",
     "users",