fix: address CodeRabbit review findings on PR #183

- Add SeasonVoter::EDIT guard to QuizQuestionController::view()
- Add full-count check in reorder() to reject partial ordering payloads
- Retry once in _persistOrder(); lock drag and show dismissible alert on failure
- Remove tabindex="-1" from correct-answer toggle button (accessibility)
- Replace 'EMPTY'|trans placeholder with proper copy
- Add data-modal-title to question bank Edit button to prevent stale title

templates/backoffice/season/tab_question_bank.html.twig

@@ -129,6 +129,7 @@
                             <button type="button" class="btn btn-outline-secondary"
                                     data-action="click->bo--modal#open"
                                     data-src="{{ path('tvdt_backoffice_question_bank_edit', {seasonCode: season.seasonCode, bankQuestion: bankQuestion.id}) }}"
+                                    data-modal-title="{{ 'Edit question'|trans }}"
                                     title="{{ 'Edit'|trans }}"><i class="bi bi-pencil"></i></button>
                             <button type="button" class="btn btn-outline-danger" data-bs-toggle="modal"
                                     data-bs-target="#deleteBankQuestion-{{ bankQuestion.id }}"