[Feature]: Pass additional parameters from `navset_card_*()` to `card()`

### Category UI Components ### Scope Quality of Life ### Problem I came across a situation where I wanted a `navset_card_pill` inside an outer card. The navset card held several elements under each tab, meaning the inner card needed a scrollbar to view all elements. My preference in this scenario would have been to have the outer card scroll and the inner card expand to its full height. The trouble is that you can't pass additional parameters to `navset_card_pill` such as `style`, `height`, or `fill`. My workaround was to wrap the `navset_card_pill` in a `div` to set `height="auto"`. This was fine. It has a minor inconvenience of extra margin below the inner card, but that isn't very difficult to correct with some CSS. ## Reproducible Example Observe the scrolling behavior of the left column when the window height is small (for example on a mobile device in landscape mode). The navset card is becomes very short and is forced to scroll. ```python from shiny import App, ui import lorem app_ui = ui.page_navbar( ui.nav_panel( "Main", ui.layout_columns( ui.card( ui.card_header("Outer Card"), ui.p("Some UI element above"), ui.navset_card_pill( ui.nav_panel("Tab 1", ui.p(lorem.get_paragraph(3))), # can't pass additional arguments through to card() ), ui.p("Some UI element below"), ), ui.card("Right column", ui.p(lorem.get_paragraph(3))), col_widths=[6, 6], ), ), title="App", fillable=True, ) def server(input, output, session): pass app = App(app_ui, server) ``` An example of the workaround: <details> ```python from shiny import App, ui import lorem app_ui = ui.page_navbar( ui.nav_panel( "Main", ui.layout_columns( ui.card( ui.card_header("Outer Card"), ui.p("Some UI element above"), ui.div( ui.navset_card_pill( ui.nav_panel("Tab 1", ui.p(lorem.get_paragraph(3))), ), height="auto", ), ui.p("Some UI element below"), ), ui.card("Right column", ui.p(lorem.get_paragraph(3))), col_widths=[6, 6], ), ), title="App", fillable=True, ) def server(input, output, session): pass app = App(app_ui, server) ``` </details> Shiny: 1.6.2 Python: 3.14.5 OS: Windows 11 Browser: tested in Firefox and Chrome ### Solution Similar to #1451, passing through other parameters to `card()` would be useful. That would offer more freedom for users to style the `navset_card_*` cards. Perhaps `kwargs` would be suitable here? ### Alternatives (Optional) _No response_ ### Example (Optional) ```python ``` ### Impact (Optional) _No response_ ### Contribution? (Optional) Yes, I can implement (or help).