Merge branch 'dev' into 'master'

.gitlab-ci.yml

Dockerfile

README.md

backend/server.ts

backend/src/persistence.ts

backend/src/processor.ts

backend/src/protocolHandler.ts

backend/src/state.ts

backend/src/transactions.ts

feedback.txt

frontend/package.json

frontend/src/API.ts

frontend/src/Admin/Admin.tsx

frontend/src/Admin/Teams.tsx

frontend/src/App.tsx

frontend/src/BuzzTimings.tsx

frontend/src/Buzzer/Buzzer.tsx

frontend/src/Configure/Configure.tsx

frontend/src/Prerequisites/SoundCheck.tsx

frontend/yarn.lock