feat(notify): add first implementation with basic demo and no tests
feat(utilities-notify): improve implementation and add some tests
feat(utilities-notify): add tests
feat(utilities-notify): add tests
feat(utilities-notify): remove container from containers list after hiding it
feat(utilities-notify): fix bug in notify positioning
feat(utilities-notify): implement better notifications positioning
feat(utilities-notify): fix style
feat(utilities-notify): add todo
feat(core): add kiui prefix and plugin function
feat(utilities-notify): update notify to use kendo widgets, update some tests and add css transitions
feat(utilities-notify): update demo
feat(utilities-notify): add more tests and remove old ones
feat(utilities-notify): remove unused code
feat(utilities-notify): rename to "notifier"
feat(utilities-notifier): rename css classes to match widgets' names
feat(utilities-notifier): remove widgets options validation
feat(utilities-notifier): implement notification with icon, title and content
feat(utilities-notifier): apply default icons to notifications
feat(utilities-notifier): fix append option