Fix issue with irregular table (#9130) (#9249)

* Fix an inssue where unstructured will extract table with varying row columns count, leading to panda crashing #9130

* Consider table with wrong layout (likely html positioning with table) as Text. Add a test to verify that node_parser unstruct_element handle table correctly

* Update the irregular table to work also when the irregularity happen beyond line 0-1. Add a test for table that contain empty cell, Add a test for table that were not all line contian the same number of column.

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Co-authored-by: Pierre <pierre@Pierres-MBP.home>