Improve stack trace styler throws on parse error

[olivroy]

Progress towards #1116

For style_text() and the addins

Before

This PR:

for style_file() and friends

before

This PR

for style_dir()

On purpose, I malformed 2 files to have a feel of the message when attempting to style many malformed files.
It may be too verbose as many lines are there, but I would argue it is unlikely someone has multiple malformed files they want to style

[github-actions]

This is how benchmark results would change (along with a 95% confidence interval in relative change) if c6944ab is merged into main:

• ✔️cache_applying: 174ms -> 176ms [-1.49%, +3.51%]
• ✔️cache_recording: 560ms -> 556ms [-2.28%, +0.88%]
• ✔️without_cache: 1.03s -> 1.03s [-1.34%, +0.57%]

Further explanation regarding interpretation and methodology can be found in the documentation.

[IndrajeetPatil]

The trace reads much better. Thanks! :)