* add reactMount util to kibana_react
(kibana-react) properly export reactMount
* add MountPoint types and utility
* adapt toast API to no longer accept react elements
(toast API) properly export new Toast type
* adapt calls by using reactMount
createNotifications: do not wrap if text
* update generated doc
* add custom snapshot serializer for reactMount
* fix unit tests
fix xpack unit tests
* adapt non-ts calls
* do not add __reactMount__ property in production
* remove string check on createNotifications
* fix typo and small fix using obj spread
* improve react mount snapshot serializer
* simplify convertToEui
* rename reactMount to toMountPoint
* adapt newly added calls
* move mount types to proper file
* use new Mount types for OverlayBanner apis
* fixing typo
* adapt new calls
* use destructured imports
e04adbe34b