Unilateral flag is now editable

src/components/Profile.tsx

@@ -13,6 +13,7 @@ import { Button } from './ui/Button';
 import { Card } from './ui/Card';
 import { Modal } from './ui/Modal';
 import { SideSheet } from './ui/SideSheet';
+import { Checkbox } from './ui/Checkbox';
 
 interface ProfileProps {
     user: User;
@@ -654,6 +655,14 @@ const Profile: React.FC<ProfileProps> = ({ user, onLogout, lang, onLanguageChang
                                         />
                                     </div>
                                 )}
+
+                                <div className="px-1 py-2">
+                                    <Checkbox
+                                        checked={editingExercise.isUnilateral || false}
+                                        onChange={(e) => setEditingExercise({ ...editingExercise, isUnilateral: e.target.checked })}
+                                        label={t('unilateral_exercise', lang) || 'Unilateral exercise'}
+                                    />
+                                </div>
                             </div>
                         </SideSheet>
                     )}