fix: weekbased calculation pdf report

with this change the time calculations for pdf reports should be better
line with the reports send as "week_report"

Backend/main.go

@@ -38,7 +38,7 @@ func main() {
 	if err != nil {
 		slog.Info("No .env file found in directory!")
 	}
-	if helper.GetEnv("GO_ENV", "production") == "debug" {
+	if helper.IsDebug() {
 		logLevel.Set(slog.LevelDebug)
 		envs := os.Environ()
 		slog.Debug("Debug mode enabled", "Environment Variables", envs)