fix vertical metrics

[mustafa0x]

safari has an issue where line height is off. fix vertical metrics fixed the issue (or helped at least). i used this tool: https://transfonter.org/

• https://stackoverflow.com/questions/11726442/font-rendering-line-height-issue-on-mac-pc-outside-of-element
• https://www.maxkohler.com/posts/2022-02-19-fixing-vertical-metrics/
• see https://nuqayah.com/kitab-test.html

https://user-images.githubusercontent.com/1473102/221762211-b7ef3e24-7e0e-4485-af2d-cf1ad5b5dc55.mp4