[PATCH] Fix cell height calc in resize handle

[PATCH] Fix cell height calc in resize handle

Correct typo using cellWidth() instead of cellHeight() for
minimum height calculation during vertical resizing. Ensures
proper cell-aligned sizing behavior.

(cherry picked from commit 4b1dfd560433ef89f80b5916d2ac15739c5f91fb)

Co-authored-by: Wang Yu <wangyu@uniontech.com>
Gbp-Pq: Name upstream_2c855c2f_Fix-cell-height-calc-in-resize-handle.patch