Reorganized the code, moved more things to the new part

cmd/main.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"log"
 	"music-server/internal/server"
-	"music-server/pkg/conf"
+	"music-server/pkg/db"
 	"net/http"
 	"os/signal"
 	"syscall"
@@ -21,7 +21,7 @@ func gracefulShutdown(apiServer *http.Server, done chan bool) {
 	<-ctx.Done()
 
 	log.Println("shutting down gracefully, press Ctrl+C again to force")
-	conf.CloseDb()
+	db.CloseDb()
 
 	// The context is used to inform the server it has 5 seconds to finish
 	// the request it is currently handling