* feat(notification): Add undoable notification
* feat(notification): Add undoable notification
* feat(notification): Use uhk-header to the notification
* half ready solution
* - fix: "Keymap has been deleted" is displayed for macros.
- When a keymap/macro deletion gets undone, please set the route of the restored keymap/macro.
- When the user switches to another route, please make the undo notification disappear.
* fix(keymap): Store prev user configuration in the application reducer
Store the previous state in application reducer, because refactoring the
user-config reducer is not easy
* feat(keymap): Fix review request
