[Telemetry] Server-side Migration to NP (#60485)

* [Telemetry] Migration to NP

* Telemetry management advanced settings section + fix import paths + dropped support for injectVars

* Fix i18nrc paths for telemetry

* Move ui_metric mappings to NP registerType

* Fixed minor test tweaks

* Add README docs (#60443)

* Add missing translation

* Update the telemetryService config only when authenticated

* start method is not a promise anymore

* Fix mocha tests

* No need to JSON.stringify the API responses

* Catch handleOldSettings as we used to do

* Deal with the forbidden use case in the optIn API

* No need to provide the plugin name in the logger.get(). It is automatically scoped + one missing CallCluster vs. APICaller type replacement

* Add empty start method in README.md to show differences with the other approach

* Telemetry collection with X-Pack README

* Docs update

* Allow monitoring collector to send its own ES client

* All collections should provide their own ES client

* PR feedback

* i18n NITs from kibana-platform feedback

Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>

.i18nrc.json

@@ -35,8 +35,8 @@
     "server": "src/legacy/server",
     "statusPage": "src/legacy/core_plugins/status_page",
     "telemetry": [
-      "src/legacy/core_plugins/telemetry",
-      "src/plugins/telemetry"
+      "src/plugins/telemetry",
+      "src/plugins/telemetry_management_section"
     ],
     "tileMap": "src/legacy/core_plugins/tile_map",
     "timelion": ["src/legacy/core_plugins/timelion", "src/legacy/core_plugins/vis_type_timelion", "src/plugins/timelion"],