Range selection exceeds grid border when using keyboard on last row

[lunatiqqc]

When using the keyboard for range selection (holding the Shift key and pressing the Arrow Down key) on the last row of the grid, the UI incorrectly extends beyond the bottom border of the grid.

This behavior causes a visual overflow issue where the selection range visually extends past the grid’s boundary, disrupting the UI layout.

Steps to Reproduce:

Navigate to the grid on the demo page.
Select the last row with either keyboard or mouse.
Hold the Shift key and press the Arrow Down key to extend the selection.
Observe that the selection range extends beyond the grid’s bottom border.

Expected Behavior: The range selection should stop at the last row without overflowing the grid's boundaries.

Observed Behavior: The range selection visually extends beyond the grid's bottom border, causing an overflow issue.