Merge branch 'editor-definition-yaml' into 'dp-platkova'

frontend/package.json

frontend/src/editor/ConclusionForm/index.tsx

frontend/src/editor/DataRemovalDialog/index.tsx

frontend/src/editor/DownloadDefinition/index.tsx

frontend/src/editor/ExpressionBuilder/index.tsx

...tend/src/editor/FinalInformationForm/EmailChannelForm.tsx

.../src/editor/FinalInformationForm/ExerciseDurationForm.tsx

...nd/src/editor/FinalInformationForm/FinalMilestoneForm.tsx

frontend/src/editor/FinalInformationForm/FormChannelForm.tsx

frontend/src/editor/FinalInformationForm/InfoChannelForm.tsx

frontend/src/editor/FinalInformationForm/ToolChannelForm.tsx

frontend/src/editor/FinalInformationForm/index.tsx

frontend/src/editor/InjectSpecification/OverlayForm.tsx

frontend/src/editor/LandingPage/index.tsx

frontend/src/editor/LearningActivities/index.tsx

frontend/src/editor/LearningActivityForm/index.tsx

frontend/src/editor/Navbar/index.tsx

frontend/src/editor/downloadDefinitionZip.tsx

frontend/src/editor/indexeddb/joins.tsx

frontend/src/editor/indexeddb/operations.tsx