When the cursor has a block shape and is not on the first line, its name popup exhibits an overlap: <img width="171" alt="Screenshot 2024-12-13 at 18 00 54" src="https://github.com/user-attachments/assets/1dc2ef93-020b-45c4-9fc6-db7d97f65c62" /> This occurs because the popup's horizontal alignment is set differently when the cursor [is](https://github.com/zed-industries/zed/blob/fff12ec1e5278e1825d912241f62179387ac8176/crates/editor/src/element.rs#L6383) or [isn't](https://github.com/zed-industries/zed/blob/fff12ec1e5278e1825d912241f62179387ac8176/crates/editor/src/element.rs#L6385) on the first line. This PR makes the horizontal alignment the same in both cases, which removes the overlap: <img width="176" alt="Screenshot 2024-12-13 at 17 57 20" src="https://github.com/user-attachments/assets/a3c10ed5-6a1b-4040-9408-92290e9da30b" /> Closes #21887. Release Notes: - Fixed an overlap that cuts off user names when a cursor has a block shape.