Kirby Focus Versions Save

• Adds support for WebP and AVIF for ImageMagick #65

This update requires Kirby 3.6

• Reverts latest changes to keep compatibility with Kirby 3.5 #66

• Fixes filename for focusSrcset #63 by @owzim
• Adds support for multiple mime types #64 by @seehat

• Add support for focusSrcset() presets

• Fix UI for translate: false #59
• Remove Kirby 2 info from README

• Add exception for ImageMagick errors #48 by @olach
• Allows to pick a focus point for videos #53 by @sylvainjule

• Fixes #47

• Add support for srcset
• Add support for presets
• Display error message if field is used outside a file blueprint
• Fix ImageMagick typo by @tristantbg
• Fix submodule example in README by @tobiasfabian
• Link contributors in README

• Add pluginkit structure
• Fix visibility of focus field by @sylvainjule
• Organize Github files
• Show help text below the field