Editor - add page access control

frontend/src/components/Sidebar/index.tsx

frontend/src/editor/ConclusionForm/index.tsx

frontend/src/editor/DataRemovalDialog/index.tsx

frontend/src/editor/EditorPage/index.tsx

frontend/src/editor/EmailAddressForm/index.tsx

frontend/src/editor/EmailTemplates/EmailTemplate.tsx

frontend/src/editor/ExerciseInformationForm/index.tsx

frontend/src/editor/ExpressionBuilder/index.tsx

...nd/src/editor/ExpressionBuilder/useValidateExpression.tsx

frontend/src/editor/FinalInformationForm/index.tsx

frontend/src/editor/InjectSpecification/ConnectionsForm.tsx

frontend/src/editor/IntroductionForm/index.tsx

...ditor/LearningActivitySpecification/EmailTemplateForm.tsx

...editor/LearningActivitySpecification/ToolResponseForm.tsx

frontend/src/editor/Navbar/NavbarButton.tsx

frontend/src/editor/Navbar/index.tsx

frontend/src/editor/ToolResponseFormDialog/index.tsx

frontend/src/editor/ToolResponses/ToolResponse.tsx

frontend/src/editor/downloadDefinitionZip.tsx

frontend/src/editor/indexeddb/operations.tsx