* Align selectors with frontend updates
* Drop metadata from MediaSelector selection
* Adjust blueprint tests
* Address review comments
* Add tests for new selectors
* Don't stringify input
* Require min+max for number selector in slider mode
* vol.Schema does not like static methods
* Tweak
* Allow area, device, and entity selectors to optionally support multiple selections like target selector
* Update according to code review comments
* Adjust tests
* Update according to review comments
* Tweak error message for multiple entities
Co-authored-by: Erik <erik@montnemery.com>