Updates amplitude to include the update about sending events on exiting the page.

Fix some errors. Remove @ts-ignores
Convert some files to TS
Remove some eslint-disables

Remove unnecessary @ts-ignores
Remove unnecessary eslint-disable

Remove ts-ignores that are no longer needed because of tsconfig.web.json
Change ts-ignore to ts-expect-error for files outside react/features

* fix(ts,connection) avoid mixing web and native code

* chore(ts) split config

The mobile part is still WIP.

* Remove default tsconfig

* Fix ts-loader - use web tsconfig

* Fix tsconfig

Use noEmit only on npm scripts (for type checking), but don't use it in webpack

* Fix

* Fix import

* Fix

Co-authored-by: Saúl Ibarra Corretgé <saghul@jitsi.org>

Amplitude has gone back to having a separate package for RN, so switch to it.

The amplitude-js library gained React Native support so there is no need to keep
separate implementations.

* Integrate rtcstats

* expcetion handling / clean up

* order imports

* config fix

* remove mock amplitude handler

* additional comments

* lint fix

* address code review

* move rtcstats middleware

* link to jitsi rtcstats package

* address code review

* address code review / add ws onclose handler

* add display name / bump rtcstats version

* resolve import error