Grid horizontal scroll misalignment - header doesn't stay fixed after switching between windowed and fullscreen mode

### Bug Description

When scrolling horizontally in grid view, the table content becomes misaligned with the header after switching between windowed and fullscreen modes. The header doesn't stay fixed and scrolls with the content, creating a visual disconnect.

### How to Reproduce

1. Open a grid view with multiple columns
2. Switch to windowed mode
3. Scroll horizontally in the table content area
4. Switch to fullscreen mode
5. Scroll horizontally again
6. Notice the misalignment between header and content

### Expected Behavior

- The table header should remain fixed while scrolling horizontally through content
- Header and content should stay aligned at all times
- Horizontal scrolling should work consistently whether initiated from header or content area

### Operating System

Windows 11

### AppFlowy Version(s)

0.12.2 (Official Build)

### Screenshots

https://github.com/user-attachments/assets/6cf6cf13-e32e-49b9-8403-5d07a9148f42

### Additional Context

_No response_