Fix compute cell indices, table unmerge, delete row / column, add row / column, copy table data

[natamox]

Problems encountered in the table now:
When splitting cells, deleting and adding rows and columns, the table format will be disordered and cells will be missing. In the end, I found that all the errors are related to a function (computeAllCellIndices). Because the result of this function is wrong, the subsequent process goes in the wrong direction, and the splitting, adding and deleting all lack consideration for certain special situations, which leads to errors.
Solution:

1. Remove computeAllCellIndices and replace it with computeCellIndices with a more accurate algorithm
2. Split cells and use the function getClosestColPathForRow to obtain a more accurate path to adjacent cells
3. For table data copied and pasted, make the colspan and rowspan attributes in the html tag compatible
4. Insert rows, insert columns, and delete columns fix the exceptions caused by inaccurate calculations of colspan and rowspan, and use deep copy cells to prevent impact on previous data
5. The situation of deleting rows is relatively complicated. In addition to the same problem as the fourth one mentioned above, the previous processing of moveToNextRowCells was relatively simple, without considering special cases, and incorrect calculation of rowsNumberAffected
6. Fix the exceptions caused by no filtering of data and path calculation errors when copying and pasting table data

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[changeset-bot]

🦋 Changeset detected

Latest commit: 44544cd

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 4 packages

Name	Type
@udecode/plate-table	Patch
@udecode/plate-csv	Patch
@udecode/plate-docx	Patch
@udecode/plate	Patch

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[natamox]

Before:
https://github.com/user-attachments/assets/9f33ac4a-a03a-4db4-81b0-e36f492988ec

After:
https://github.com/user-attachments/assets/1c54b6d0-d1fa-4b62-8239-92a28c020866

[zbeyens]

Great job @natamox , thanks!