Quiz Improvements

• Add reading function when clicking on pronunciation and explanation.
• Change external keyboard shortcuts
  • Quiz shortcuts
• Multiple Choice
  • It can pass without solving.
  • It does not skip until founding the correct answer.
  • Only one meaning is visible in the selection list.
• Dictation
  • It can pass without solving.

Other updates

• Display the number of words not backed up.
• Fix external keyboard shortcut (copy, paste, cut) bug.
• Adding words screen
  • Fix comma separation option bug.
  • Add an option to automatically read a word when pressing Enter after entering a word.