* attributes endpoint
* event endpoints
* add attributes to more filters
* add to suggestions and query in explore
* support attributes in search input
* i18n
* add object type filter to endpoint
* add attributes to tracked object details pane
* add generic multi select dialog
* save object attributes endpoint
* add group by param to fetch attributes endpoint
* add attribute editing to tracked object details
* docs
* fix docs
* update openapi spec to match python