Callout - Rendering bug in JupyterLab markdown cell

[stefansimik]

Bug description

Callout has invalid rendering in JupyterLab markdown cell, when last character is space.

Steps to reproduce

This code causes invalid rendering - the point is the last space at the end of sentence = after "on their own.":

::: {.callout-note icon="tip"}
## Summary in one sentence
`Supervised learning` is a method of creating models where, during the training phase, the models see the correct target value in the data, which they then learn to predict on their own. 
:::

This is result in JupyterLab:

When the last space is removed, it works OK:

::: {.callout-note icon="tip"}
## Summary in one sentence
`Supervised learning` is a method of creating models where, during the training phase, the models see the correct target value in the data, which they then learn to predict on their own.
:::

Expected behavior

One space at the end should not cause rendering issue in JupyterLab.

Actual behavior

One space at the and of text causes invalid rendering in JupyterLab.

Your environment

MacOS Sonoma 14.5
JupyterLab: 4.2.0
JupyterLab extension: jupyterlab-quarto 0.3.3

Quarto check output

Quarto 1.4.551
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.1.11: OK
      Dart Sass version 1.69.5: OK
      Deno version 1.37.2: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.4.551
      Path: /Users/stesim/Applications/quarto/bin

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

[✓] Checking LaTeX....................OK
      Tex:  (not detected)

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

[✓] Checking Python 3 installation....OK
      Version: 3.11.8 (Conda)
      Path: /opt/anaconda3/bin/python
      Jupyter: 5.5.0
      Kernels: skolenie, python3
    
[✓] Checking Jupyter engine render....OK

[cderv]

This is an issue with the JupyterLab extension only so I'll move this there. Thanks for the report !