feat: Add a way to make table columns responsive

[bprusinowski]

Closes #2456

This PR introduces a "Responsive column widths" checkbox to table charts to be able to shrink their widths. Before this PR, columns were always taking either the width of the header, or maximum width of any value inside it; now there's an option to make the table try to "fit" all columns in the container.

How to test

1. Go to this link.
2. Switch to a table chart.
3. ✅ See that there's a Responsive column widths checkbox in the Table Options section.
4. ✅ Enable it and see that the column widths have been reduced to make the table fit all columns at once. There's a built-in minimum column width to make sure they do not shrink indefinitely (e.g. on mobile).
5. ✅ See that it's possible to see the full column names by holding a cursor over the headers (native browser tooltip) or by clicking on it (Details drawer).
6. ✅ Publish the chart and scroll the content a bit to see text ellipsis in the Kanton column itself (Appenzell Ausserr...).

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• I added a CHANGELOG entry
• I made a self-review of my own code
• I wrote configurator and chart config migrations

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Project	Deployment	Review	Updated (UTC)
visualization-tool	Ready	Preview, Comment	Jan 21, 2026 1:31pm