added metadata in frontend

docker-compose.yml

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

...rc/main/java/at/tuwien/service/impl/MariaDataService.java

fda-ui/components/DBToolbar.vue

fda-ui/components/QueryList.vue

fda-ui/components/query/Builder.vue

fda-ui/layouts/default.vue

fda-ui/pages/databases/_database_id/admin.vue

fda-ui/pages/databases/_database_id/info.vue

...ges/databases/_database_id/queries/_query_id/metadata.vue

.../pages/databases/_database_id/tables/_table_id/import.vue

fda-ui/pages/databases/_database_id/tables/create.vue

fda-ui/pages/databases/_database_id/tables/index.vue

fda-ui/pages/databases/index.vue