subsonic: set User Agent header in requests

CHANGES.md

@@ -16,6 +16,7 @@
   still read.
 - deezer-history: new backend to import listens and loves from Deezer data export.
 - deezer: fixed endless export loop if the user's listen history was empty.
+- subsonic: set User Agent header in requests.
 - dump: it is now possible to specify a file to write the text output to.
 - Fixed potential issues with MusicBrainz rate limiting.
 - Fixed import log output duplicating.

internal/backends/subsonic/subsonic.go

@@ -61,6 +61,7 @@ func (b *SubsonicApiBackend) InitConfig(config *config.ServiceConfig) error {
 		BaseUrl:    config.GetString("server-url"),
 		User:       config.GetString("username"),
 		ClientName: version.AppName,
+		UserAgent:  version.UserAgent(),
 	}
 	b.password = config.GetString("token")
 	return nil