- Add 'extra-compact' density level that hides avatars and preview
text, showing only sender and subject for maximum information density
- Add visual density preview in appearance settings showing a 3-row
email list mockup that reflects each density option
- Fix global font size setting only changing line height by moving
font-size from body to :root so rem-based Tailwind classes scale
- Apply extra-compact behavior to email list items, thread list items,
thread email items, and thread conversation view (EmailCard)
- Update email list virtualizer size estimates for extra-compact
- Add extra-compact translations for all 8 locales
Linus Rath
d5404de224