More granular zoom/font size controls — code vs chat text sizes are inconsistent

The font size zoom levels are too coarse. When Claude Code text is set to a comfortable size, the next step up is disproportionately large. There's no middle ground.

Additionally, the text size in code blocks/terminal output is noticeably smaller than regular chat text at the same zoom level, making it hard to calibrate a single setting that works well for both.

Request: Add more granular zoom increments (e.g. 10% steps instead of large jumps), and/or separate font size controls for code vs. prose content.