feat:#150 updated log messages

backend/main.go

@@ -5,7 +5,7 @@ import (
 	"github.com/pocketbase/pocketbase/plugins/migratecmd"
 	_ "htwkalender/migrations"
 	"htwkalender/service"
-	"log"
+	"log/slog"
 	"os"
 	"strings"
 )
@@ -27,6 +27,6 @@ func main() {
 	service.AddSchedules(app)
 
 	if err := app.Start(); err != nil {
-		log.Fatal(err)
+		slog.Error("Failed to start app: %v", err)
 	}
 }