Merge branch 'development' into 121-copy-assignments-to-new-edition

.../tudelft/submit/dto/create/SubmitAssignmentCreateDTO.java

...nl/tudelft/submit/dto/patch/SubmitAssignmentPatchDTO.java

...submit/dto/view/labracore/SubmitAssignmentDetailsDTO.java

...submit/dto/view/labracore/SubmitAssignmentSummaryDTO.java

src/main/java/nl/tudelft/submit/enums/GradingStrategy.java

src/main/java/nl/tudelft/submit/model/SubmitAssignment.java

...ain/java/nl/tudelft/submit/service/AssignmentService.java

src/main/java/nl/tudelft/submit/service/EditionService.java

src/main/java/nl/tudelft/submit/service/ExportService.java

src/main/java/nl/tudelft/submit/service/FormulaService.java

src/main/java/nl/tudelft/submit/service/GradeService.java

src/main/java/nl/tudelft/submit/service/ScriptService.java

...ain/java/nl/tudelft/submit/service/StatisticsService.java

...ain/java/nl/tudelft/submit/service/SubmissionService.java

src/main/resources/messages.properties

src/main/resources/migrations.yaml

src/main/resources/templates/assignment/add.html

src/main/resources/templates/assignment/edit.html

src/main/resources/templates/assignment/view.html

src/main/resources/templates/edition/assist.html