- copy exercise is now done on the server

i18n/en.ts

i18n/i18nRoot.ts

src/app.tsx

src/communicationLayer/exerciseEditorLayer.ts

src/components/siteHeaderBar/siteHeaderUserArea.tsx

...omponents/sites/exerciseEditorSite/exerciseEditorSite.tsx

...nts/sites/manageGroupExercisesSite/groupExercisesSite.tsx

...ponents/sites/manageOwnExercisesSite/ownExercisesSite.tsx

...nts/sites/manageOwnOrGroupExerciseComponents/listView.tsx

src/constants.ts

...actions/manageOwnExercisesSite/ownExercisesSiteActions.ts

...manageGroupExercisesSite/groupExercisesSiteActionTypes.ts

...ers/manageOwnExercisesSite/ownExercisesSiteActionTypes.ts

...educers/manageOwnExercisesSite/ownExercisesSiteReducer.ts