### Is there an existing issue for this? - [x] I have searched the existing issues ### Current Behavior I have problems with GraphQL Playground page. It stopped working yesterday.I have solved this problem like that: https://github.com/graphql/graphiql/issues/4033#issuecomment-3000102372 However, the new page has text cursor issue. The cursor doesn't go to the end of line. <img width="392" alt="Image" src="https://github.com/user-attachments/assets/8e38b11d-014d-4cae-bebf-5b294e9789d8" /> ### Expected Behavior - Selection should cover all text. - when user clicks "End" button, the cursor should go to the end of line. <img width="239" alt="Image" src="https://github.com/user-attachments/assets/31c81c13-cfcb-4f8c-9182-e2f92423a656" /> ### Steps To Reproduce 1. Open GraphQL 5.0.0 Playground Page 2. Enter and longer than 20 characters text. 3. Check the cursor location. 4. Select all text with Cmd + A, 5. Check how text will be selected. ### Environment * GraphiQL Version: * OS: Windows * Browser: Chrome, Edge * Bundler: * `react` Version: 19 * `graphql` Version: 5.0.0 ### Anything else? _No response_