feat: better SQLite3 configuration, to avoid DB contention

conf/configuration.go

@@ -83,7 +83,7 @@ func LoadFromFile(confFile string, skipFlags ...bool) {
 		os.Exit(2)
 	}
 	if Server.DbPath == "" {
-		Server.DbPath = filepath.Join(Server.DataFolder, "navidrome.db")
+		Server.DbPath = filepath.Join(Server.DataFolder, consts.DefaultDbPath)
 	}
 	if os.Getenv("PORT") != "" {
 		Server.Port = os.Getenv("PORT")

consts/consts.go

@@ -6,6 +6,7 @@ const (
 	AppName = "navidrome"
 
 	LocalConfigFile     = "./navidrome.toml"
+	DefaultDbPath       = "navidrome.db?cache=shared&_busy_timeout=15000&_journal_mode=WAL"
 	InitialSetupFlagKey = "InitialSetup"
 
 	JWTSecretKey       = "JWTSecret"