feat: Implement `QuizRecapitulationViewModel`

[apomalyn]

Requirements

Implement a QuizRecapitulationViewModel that:

• receives a list of answered questions
• update the knowledge levels
• determine how many new words were shown during the quiz
• determine the grade for the list of questions

What needs to be done

Under src/practice/quiz/recapitulation/models, create a Recapitulation model using freezed, it should have the following properties:

• KnowledgeUpdate knowledgeUpdate
• bool? skipped = false
• String questionSubject: notion or word evaluated in the question
• String expectedAnswer

Under src/practice/quiz/recapitulation, create a QuizRecapitulationViewModel:

• extending FutureViewModel
• have the following getters:
  • double grade
  • List<Recapitulation> recapitulations
  • int? streak: null if there isn't a streak update
  • int? newWords: null if there isn't new words on the quiz
• constructor:
  • receives:
  • GoRouter router
  • List<Question> questions
  • do:
  • initialize the grade (sum all questions[].knowledgeUpdates[].grade and get a percentage out of it)
  • initializerecapitulations based on the questions, order the list by knowledgeUpdate.grade, compile all duplicated knowledge level by doing an average
  • initialize the streak if user.streak_last_update is older than today
• futureToRun should:
  • update the knowledge repository with all the KnowledgeUpdate from recapitulations
• have an onContinuePressed method that redirects to /practice (PracticeView.routeName)

Dependencies

Child of #210

Depends on:

• 167

• 233

Dev notes

• Freezed documentation