Feature: When pasting a table, it does not work if there are merged cells in the target table.

## Description
When pasting a table, it does not work if there are merged cells in the target table.

### Current Behavior

https://github.com/user-attachments/assets/24dfeff4-5b77-42e1-8857-33971bfbff5f

### Expected Behavior

https://github.com/user-attachments/assets/f3df4552-ee8b-4cc3-8288-b08936b5c36a

## Impact
- Enhances user experience through more intuitive table operations.

