Resolve "fix linting"

client/.eslintrc

client/package.json

client/src/Main.tsx

client/src/index.tsx

client/src/pages/admin/AdminPage.tsx

client/src/pages/admin/components/CompetitionManager.tsx

client/src/pages/admin/components/Regions.tsx

client/src/pages/login/LoginPage.tsx

client/src/pages/login/components/AdminLogin.tsx

client/src/pages/login/components/CompetitionLogin.tsx

...t/src/pages/presentationEditor/PresentationEditorPage.tsx

...ges/presentationEditor/components/CompetitionSettings.tsx

...src/pages/presentationEditor/components/SettingsPanel.tsx

client/src/pages/views/AudienceViewPage.tsx

client/src/pages/views/JudgeViewPage.tsx

client/src/pages/views/ParticipantViewPage.tsx

client/src/pages/views/ViewSelectPage.tsx

client/src/reportWebVitals.ts