A tool for faster memorization

todo

• [x]questions pagination
• [x]edit book/question/option
• [x]single option -> mark correct
• [x]Slay, mark as done/wrong
• [x]Wrong answer
• review
• [x]add video for QAs
• question list -> show hasMedia icon

Forgetting Curve

• First time
• 15m
• 24h
• 3d
• 7d
• 1 Month