fixes #18464 - Add Redux to statistics page

This is a first step to replacing Flux with Redux

Fixes #18343 - add method for deprecation of JS functions

Fixes #18194, #18326 - minor UI bugs Notifications

persist open group on navigation
remove expand toggle indicator

fixes #18191,#18192 - monitor notification request

prevent multiple requests, stop polling after error

fixes #18010 - UI Notifications front-end implementation

Fixes #17844 - unify test mail js code

Fixes #17971 - move user taxonomyAdded js to webpack

Fixes #3551 - Show unavailable Puppet Classes in Host Group edit

Puppet Classes can be assigned to a Host Group even if they are
not available in the set environment.

The Classes persist through out changes of the environment,
but were previously hidden from the UI this changes that....

Fixes #17972 - Simplify new trend form js and helpers

Migrated the js to webpack as well.

fixes #17600 - Storybook does not draw chart