Incorrect word wrapping when breaking a word

[Nerixyz]

Checklist

• I'm reporting a problem with Chatterino
• I've verified that I'm running the most recent nightly build or stable release
• I've looked for my problem on the wiki
• I've searched the issues and pull requests for similar looking reports

Describe your issue

On some fonts, we don't do word wrapping correctly when a single word needs to be split. Consider the following example:

• Set font to Arial
• (use any font engine)
• Generate a message with a lot of numbers, for example:

  /timeout 111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
  

• Resize the window to break the word

Incorrect	(more) Correct

We're using horizontalAdvance on every codepoint in the text. This doesn't always return the actual advancement in the word, because a character can have left/rightBearing.

My "(more) correct" version is from Nerixyz@1ead4bb where I used the private API to do the advancing. There might be a way of doing this through left/rightBearing.

Screenshots

No response

OS and Chatterino Version

Chatterino 2.5.2 DEBUG (commit 1ead4bb modified) built with Qt 6.9.0, MSVC 194234436 Running on Windows 11 Version 24H2, kernel: 10.0.26100