Added more configuration options for frontend

dbrepo-metadata-db/setup-schema.sql

...i/src/main/java/at/tuwien/api/container/ContainerDto.java

...src/main/java/at/tuwien/entities/container/Container.java

dbrepo-ui/Dockerfile

dbrepo-ui/config.js

dbrepo-ui/dbrepo.config.json

dbrepo-ui/docker-entrypoint.sh

dbrepo-ui/nuxt.config.js

dbrepo-ui/pages/database/_database_id/info.vue

...o-ui/pages/database/_database_id/table/_table_id/info.vue

dbrepo-ui/pages/index.vue

dbrepo-ui/pages/login.vue

docker-compose.yml