Fix image generation failure when specific characters are included

[PENEKhun]

Summary of Changes

Resolved an issue where images were not being generated correctly when specific strings were included in the source code, as shown on the third line of the image below. This fix applies to both PNG and SVG generation.

Reproduce

reproduce url : Carbon Code

// Reproduce
public static void main(String[] args) {
  Long money = 1000L;
}

Additional Notes

There is a known bug where typing in Korean on certain versions of macOS automatically triggers the backspace key. This issue has been documented here. Merging this PR will greatly benefit users experiencing this problem, including myself.

[vercel]

@PENEKhun is attempting to deploy a commit to the Carbon Team on Vercel.

A member of the Team first needs to authorize it.

[PENEKhun]

Would you mind reviewing this for me, please?

@mfix22