Generate table with long cell contents over multiple pages.

[irhawks]

Sometimes a cell is too long to appear within one pages (e.g. multiple paragraphs within a cell). In this case, typst should allow pagebreak within cells to make a cell span over pages. However, I cannot set tablex to enable this feature. long content will continue in current page until reach to the end of current page.

latex solution: https://tex.stackexchange.com/questions/552901/table-with-long-cell-contents-over-multiple-pages

[PgBiel]

Duplicate of #83

Note that native Typst tables have this feature already, this is a tablex limitation.