Value boxes in column-based dashboard get squished

Bug description

I found a curious problem. I need to create a particular dashboard with column layout, multiple pages and the possibility of scrolling the page (i.e. all the elements doesn't need to fit on the screen).

The right column will have 7 value boxes, and here comes the problem: using several value boxes in the column layout causes the boxes to be squished.

I appreciate in advance the help. Thanks for keeping quarto so useful.

Steps to reproduce

---
title: "Test dashboard"
format: dashboard
---

# Home {orientation="columns" scrolling="true"}

## Column 1

Content

## Column 2

```{r}
#| content: valuebox
#| title: "Spam per day"
list(
  icon = "trash",
  color = "danger",
  value = 10
)
```

```{r}
#| content: valuebox
#| title: "Spam per day"
list(
  icon = "trash",
  color = "danger",
  value = 10
)
```

```{r}
#| content: valuebox
#| title: "Spam per day"
list(
  icon = "trash",
  color = "danger",
  value = 10
)
```

```{r}
#| content: valuebox
#| title: "Spam per day"
list(
  icon = "trash",
  color = "danger",
  value = 10
)
```

```{r}
#| content: valuebox
#| title: "Spam per day"
list(
  icon = "trash",
  color = "danger",
  value = 10
)
```

```{r}
#| content: valuebox
#| title: "Spam per day"
list(
  icon = "trash",
  color = "danger",
  value = 10
)
```

Expected behavior

As the scrolling is enabled I would expect the height of the page to adapt to the content, keeping the aspect ratio of the boxes. Note that using bslib::value_box with a fixed height keep the box height, but then causes the different boxes to overlap.

Actual behavior

The value boxes are compacted:

Using bslib::value_box with a min_height argument instead of the built-in solution causes the boxes to overlap:

```{r}
library(bslib)
library(bsicons)
value_box(
  title = "Customer lifetime value",
  value = "$5,000",
  showcase = bsicons::bs_icon("bank2"),
  theme = "black",
  min_height = "200px"
)
```

Your environment

• IDE: RStudio Version 2024.04.0+735 (2024.04.0+735)
• MacOS Sonoma 14.4.1

Quarto check output

Quarto 1.5.52
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.2.0: OK
      Dart Sass version 1.70.0: OK
      Deno version 1.41.0: OK
      Typst version 0.11.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.5.52
      Path: /Applications/quarto/bin

[✓] Checking tools....................OK
      TinyTeX: (external install)
      Chromium: (not installed)

[✓] Checking LaTeX....................OK
      Using: TinyTex
      Path: /Users/silas/Library/TinyTeX/bin/universal-darwin
      Version: 2023

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.12.3
      Path: /opt/homebrew/opt/python@3.12/bin/python3.12
      Jupyter: (None)

      Jupyter is not available in this Python installation.
      Install with python3 -m pip install jupyter

[✓] Checking R installation...........OK
      Version: 4.3.1
      Path: /Library/Frameworks/R.framework/Resources
      LibPaths:
        - /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/library
      knitr: 1.45
      rmarkdown: 2.26

[✓] Checking Knitr engine render......OK