Greasy Fork

- Autoplay both sides of card
- Control using media keys
- Play/Pause to read/re-read current side
- Previous for 'Good' button
- Next for 'Show Answer' on front side of card, for 'Again' on back side of card

- Added support for reading the word using SpeechSynthesis API - only if German voice exists

- Done count is now persisted per day, with the count being reset to 0 at 4.00