Moved code enabling the textbox

Moved the re-enabling of the textbox to the resetQuiz method, rather
than have it redundantly run every time another question is called. This
may have to be reverted if I ever find a way to disable the textbox
without closing the touch keyboard.

app/src/main/java/com/noprestige/kanaquiz/MainQuiz.java

@@ -95,6 +95,8 @@ private void resetQuiz()
         questionBank = Hiragana.QUESTIONS.getQuestionBank();
         questionBank.addQuestions(Katakana.QUESTIONS.getQuestionBank());
 
+        txtAnswer.setEnabled(true);
+
         //TODO: Fix spacing when txtAnswer is rendered invisible
         if (OptionsControl.getBoolean(R.string.prefid_multiple_choice))
         {
@@ -116,7 +118,6 @@ private void nextQuestion()
         {
             questionBank.newQuestion();
             lblDisplayKana.setText(questionBank.getCurrentKana());
-            txtAnswer.setEnabled(true);
             isRetrying = false;
             if (OptionsControl.getBoolean(R.string.prefid_multiple_choice))
                 btnMultipleChoice.setChoices(questionBank.getPossibleAnswers());