Tabset (with explicit headers) breaks Row layout in dashboards

[mcanouil]

Take the following code, the use of tabset breaks the row layout.
The "column" in the second "row" is no longer handle properly.

Input	Output
--- title: "Quarto Playground" format: dashboard --- ## Row ### Column {.tabset} #### Tab 1 {{< lipsum 1 >}} #### Tab 2 {{< lipsum 1 >}} ### Column {{< placeholder >}} ## Row ### Column {.tabset} #### Tab 1 {{< lipsum 1 >}} #### Tab 2 {{< lipsum 1 >}} ### Column {{< placeholder >}}

Originally posted by @mcanouil in #11374 (comment)

[mcanouil]

The issue/confusion here comes from the difference with standard HTML formats.
Contrary to those, dashboard may seem to work by defining tab panels using explicit headers but it actually does not.
Instead, .card should be used.

So, it might not be considered a bug per se, but very likely to bit many users as is.

Input	Output
--- title: "Quarto Playground" format: dashboard --- ## Row ### Column {.tabset} ::: {.card title="Tab 1"} {{< lipsum 1 >}} ::: ::: {.card title="Tab 2"} {{< lipsum 1 >}} ::: ### Column {{< placeholder >}} ## Row ### Column {.tabset} ::: {.card title="Tab 1"} {{< lipsum 1 >}} ::: ::: {.card title="Tab 2"} {{< lipsum 1 >}} ::: ### Column {{< placeholder >}}

[mcanouil]

The documentation on this is not that clear in https://quarto.org/docs/dashboards/layout.html#tabsets especially the last part of the section.

It seems to imply that the component "unit" is the cards and that code-cells are basically cards but I can't find any explicit mention of that.