"Noise" rendered in bottom-most row and right-most column

### Please fill out the following: - **Sway Version:** - sway version 1.13-dev-a38d093cb (https://github.com/swaywm/sway/pull/9106) - also with ec7e0186e04528c483242202e4431dec79a8498b - (need to double check, but I think I also saw this with 1.11) - **Configuration File:** https://git.sr.ht/~whynothugo/dotfiles/tree/main/item/home/.config/sway/config - **Description:** The bottom row of pixels in the screen renders some noise, which changes a few times per second. The same happens in the right-most column of pixels. Here's a screenshot of a my screen rendering a full-screen terminal: <img width="3439" height="1439" alt="Image" src="https://github.com/user-attachments/assets/07b3d55e-7c6b-4566-bb78-347a58eb80c5" /> Here's photos of the bottom and right of my monitor: <img width="1280" height="960" alt="Image" src="https://github.com/user-attachments/assets/81e8f694-7861-4217-8264-a1312367e79b" /> <img width="1280" height="960" alt="Image" src="https://github.com/user-attachments/assets/70ad66ea-d106-4faf-87fa-da159de9d50e" /> <img width="960" height="1280" alt="Image" src="https://github.com/user-attachments/assets/354e0692-ff43-4c85-af27-6a03e2d8d8c6" /> This noise is not static, and moves around: <img width="1280" height="960" alt="Image" src="https://github.com/user-attachments/assets/4b758f9b-a140-45a8-b2d3-b4d7f90c5ed7" /> This doesn't happen when switching to another tty, or in any situation when sway is not running.