more improvements for frontend

docker-compose.yml

fda-container-service/pom.xml

...vices/src/main/java/at/tuwien/mapper/ContainerMapper.java

.../services/src/main/java/at/tuwien/seeder/ImageSeeder.java

...ces/src/main/java/at/tuwien/service/ContainerService.java

...ervices/src/main/java/at/tuwien/service/ImageService.java

fda-database-service/pom.xml

.../main/java/at/tuwien/api/container/ContainerBriefDto.java

...ain/java/at/tuwien/api/container/image/ImageBriefDto.java

...in/java/at/tuwien/api/container/image/ImageChangeDto.java

...in/java/at/tuwien/api/container/image/ImageCreateDto.java

...src/main/java/at/tuwien/api/container/image/ImageDto.java

...rc/main/java/at/tuwien/api/database/DatabaseBriefDto.java

...api/src/main/java/at/tuwien/api/database/DatabaseDto.java

...at/tuwien/api/database/table/columns/ColumnCreateDto.java

.../java/at/tuwien/api/database/table/columns/ColumnDto.java

...va/at/tuwien/entities/container/image/ContainerImage.java

...t/tuwien/entities/database/table/columns/TableColumn.java

fda-metadata-db/initi.sh

fda-table-service/pom.xml