Refactor model cursor to use orderBy

Signed-off-by: gearnode <bryan@frimin.fr>

pkg/coredata/organization.go

@@ -21,6 +21,7 @@ import (
 	"time"
 
 	"github.com/getprobo/probo/pkg/gid"
+	"github.com/getprobo/probo/pkg/page"
 	"github.com/jackc/pgx/v5"
 	"go.gearno.de/kit/pg"
 )
@@ -38,6 +39,10 @@ type (
 	Organizations []*Organization
 )
 
+func (o Organization) CursorKey(orderBy page.OrderField) page.CursorKey {
+	return page.NewCursorKey(o.ID, o.CreatedAt)
+}
+
 func (o *Organization) LoadByID(
 	ctx context.Context,
 	conn pg.Conn,