merge

client/src/actions/statistics.ts

client/src/actions/types.ts

client/src/pages/admin/AdminPage.tsx

...pages/admin/dashboard/components/NumberOfCompetitions.tsx

.../src/pages/admin/dashboard/components/NumberOfRegions.tsx

...nt/src/pages/admin/dashboard/components/NumberOfUsers.tsx

client/src/pages/views/ParticipantViewPage.tsx

client/src/pages/views/PresenterViewPage.tsx

client/src/pages/views/ViewSelectPage.tsx

client/src/reducers/allReducers.ts

client/src/reducers/statisticsReducer.ts

server/app/__init__.py

server/app/apis/alternatives.py

server/app/apis/answers.py

server/app/apis/codes.py

server/app/apis/competitions.py

server/app/apis/components.py

server/app/apis/misc.py

server/app/apis/slides.py

server/app/apis/teams.py