Access control: Enable data source view for partial permissions (#44695)

* Return correct value

* Remove scope all requirement

* Only add dashboard sub nav if user is admin

pkg/api/datasources.go

@@ -606,5 +606,5 @@ func filterDatasourcesByQueryPermission(ctx context.Context, user *models.Signed
 		return datasources, nil
 	}
 
-	return query.Datasources, nil
+	return query.Result, nil
 }