add vertical alignment for cells in Plotly Table (plotly.graph_objects.Table)

Hi,

I am working on a table with custom styling, and it seems that vertical alignment of cells is not possible using the plotly.graph_objects.Table, only horizontal alignment.

I posted a question on the Plotly Community site to see if anyone knew of a way to do vertical alignment, but they confirmed it isn't possible with the code as is (link to post).

Any thoughts about how to update the current code to enable vertical alignment? I am not too familiar with the Plotly code base and plan on cloning a copy to experiment with adding this feature.

It seems like at least a few others have wanted this feature as well:

• https://stackoverflow.com/questions/67037418/plotly-table-vertical-align-text-in-cells
• https://stackoverflow.com/questions/66698852/plotly-table-how-to-align-header-vertical-and-horizontal

Documentation references:

• https://plotly.com/python/table/
• https://plotly.github.io/plotly.py-docs/generated/plotly.graph_objects.Table.html

Thank you,
Chad

从 plotly.graph_objects.Table 和链接的 Plotly table documentation 开始，了解现有的水平对齐行为以及所请求的垂直对齐选项。issue 未指出任何 source files 或 tests，因此首先定位 Table implementation 及其 coverage。完成的标准是 table cells 支持垂直对齐，并且 documented behavior 已得到验证。