* move http.anonymousPaths.register('/status'); logic into core, remove status_page plugin
* move status_page to core & migrate lib
* migrate the status_app components to TS/KP APIs
* update rendering snapshots
* use import type syntax
* moves `/status` server-side route to core
* fix route registration
* update generated file
* change statusPage i18n prefix
* (temporary) try to restore legacy plugin to check behavior
* add some FTR tests
* do not import whole lodash
* update snapshots
* review comments
* improve / clean component unit tests
* change url for legacy status app
* set status app as chromeless
* fix FTR test due to chromeless app
* fix typings
* add unit test for CoreApp /status registration
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