New build 1.4.2 build 40

• New: adjustable text size (5 levels) in Settings → Appearance
• New: high-contrast light and dark themes
• New: font picker — Classic, Atkinson Hyperlegible, OpenDyslexic, Inter
• Calibre Content Server: language filter and sort now work
• Calibre Content Server: friendlier error messages when a connection fails
• Bulk download now saves book covers for offline viewing
• Fixed missing covers on some Calibre server syncs