Focal point support

#9

Working with entity browser

• #1 has now been merged in and Frontify should work with entity browser

Deduplicate and global add per media type

• Deduplication of existing media entities moved from global configuration to media type source configuration.
• Global add from the main media library, admin menu links, media add page can be configured per media type, as most of the time it shouldn't be needed if we add via host entities.

Initial v3 release

0.1.0

docs: update readme