known issues

[darshanC07]

There are few known issues in the current apk

1. card audio plays even after closing flashcards
2. audios goes in queue and run very slowly
3. server's inactivity causes response to take much time (add a cronjob or ping mechanism)
4. add loaders at very screen for user convenience
5. fix spacing between title and cards in flashcards screen.
6. reverify safeAreaView of each screen
7. reverify background of generate screen