Fix timer lockout and remove default slide question

.../src/pages/presentationEditor/components/SlideDisplay.tsx

...ntationEditor/components/answerComponents/AnswerMatch.tsx

...tionEditor/components/answerComponents/AnswerMultiple.tsx

...tationEditor/components/answerComponents/AnswerSingle.tsx

...entationEditor/components/answerComponents/AnswerText.tsx

client/src/pages/views/components/Timer.tsx

server/app/apis/slides.py

server/app/database/controller/add.py

server/app/database/controller/copy.py

server/tests/test_app.py

server/tests/test_helpers.py