Follow-up to #37078.
- Use Unicode Control Pictures](U+2400-U+2421) to render C0 control characters
- Make it work in diff view too
- Replace escape warning emoji with SVG
- Align escape warning button with code lines
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Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
1. Add the color on the link to the referenced file, which is the more
likely thing the user wants to click
2. Use monospace font on the SHA
3. Tweak text colors
4. Change SHA link to go to the commit instead of the repo root with
commit filter set
5. Added the repo name to the file link text
6. Fix broken line numbering rendering
