Input method pop-up is not repositioned after delete_surrounding_text

- **Sway Version:** sway version 1.12-rc3 - **Debug Log:** n/a - **Configuration File:** exec foot exec emoji-im - **Stack Trace:** n/a - **Description:** When an input method deletes text via the delete_surrounding_text request, the pop-up is not repositioned to the new cursor location. ### Example Initial state: <img width="1719" height="673" alt="Image" src="https://github.com/user-attachments/assets/a1abf7a6-4562-47b4-b91d-390fa03da63f" /> State after a few calls to delete_surrounding_text <img width="1719" height="673" alt="Image" src="https://github.com/user-attachments/assets/b1968470-0c64-4597-902b-1cf4f7d5b67b" /> Note that the pop-up remains in its original position, but it should have followed the cursor.