Image in the summary of the post overflows enclosing container

[hellt]

Describe the bug

Image in the summary of the post overflow the enclosing div

An example markdown section:

---
title: Image overflow
---
![serverless](https://gitlab.com/rdodin/pics/-/wikis/uploads/e4f956d64dcf812f64a77f8532499d07/image.png)

<!--more-->

text

Inside the post itself, the image is fit into the main container, so the issue is only with summary view

Expected behavior

Image does not overflow the enclosing container

Screenshots

Build Environment

• Theme version/commit [fe6b518]
• Hugo version [e.g. 0.82.0]