We need to migrate from deprecated react-native-fabric to react-native-firebase.
This PR enables following Firebase features:
* Analytics
* Crashlytics
* Performance

It also tracks screen view without the necessity of HOC.

Future work:
I won't do it in this PR because it's large enough, but we need to log more app events, like 'sent_message', 'open_admin', 'media_upload', etc.

* Add toggle markdown to settings

* Remove unused translation

- Refactored Message component to use React.memo and re-render only what's necessary
- Added a test mode to toggle markdown parse by long press drawer (it'll be removed in the next release)

* Tweaks on sequential threads messages

* Update tests

* Fix quote

* Prevent from deleting thread start message when positioned inside the thread

* Remove thread listener from RightButtons

* Fix error on thread start parse

* Stop parsing threads on render

* Check replied thread only if necessary

* Fix messages don't displaying

* Fix threads e2e

* RoomsListView.updateState slice

* Stop fetching hidden messages on threads

* Check if RoomView is mounted before rendering

* Refactor navigation events on RoomsListView

* Fix lint

* Fix listener

* Tweaks on sequential threads messages

* Update tests

* Fix quote

* Prevent from deleting thread start message when positioned inside the thread

* Remove thread listener from RightButtons

* Fix error on thread start parse

* Stop parsing threads on render

* Check replied thread only if necessary

* Fix messages don't displaying

* Fix threads e2e

* RoomsListView.updateState slice

* Stop fetching hidden messages on threads

* Set initialNumToRender to 5

* Connecting indicator on RoomsListView header

* Connecting indicator on RoomView header

* Remove ConnectionBadge

* Show updating on RoomView load messages

Closes #826
Closes #827
Closes #828
Closes #829
Closes #830
Closes #831
Closes #832
Closes #833

* Fix null native Messagebox component object

* [iOS] Fix header alignment

* Remove unused files

* New Icons

* Remove unused assets

* Change send icon

* Layout tweaks

* Refactor Status

* Styles changed

* User layout fix

* Separator layout changes

* Sidebar status layout fix

* Fix Message.onLongPress issue

* Fix code markdown
Closes https://github.com/RocketChat/Rocket.Chat.ReactNative/issues/625

* Status lint

* Fix tests

* Navigation debounce

* RoomActions icons

* Space between components

* Group text

* Update tests

* Remove drawer (layout needs to be changed in future releases, though)
* Don't navigate outside on logout if there's other logged server
* Update react-native-navigation

Shows "Updating..." when requesting rooms from Rest API.

Creates Icons class to manage when to load icons from native side or react-native-vector-icons.
It also fixes `react-native run-android` #517 

* Add Navigation class

* Place Drawer.js logic inside of Navigation

* Load less views at startup

* shouldComponentUpdate

* Rooms list shouldcomponentupdate

* RoomView shouldComponentUpdate

* Messagebox and Message shouldComponentUpdate

* EmojiPicker shouldComponentUpdate

* RoomActions shouldComponentUpdate

* Room info shouldComponentUpdate

* Update RNN

* Use only one Flatlist if none group filter is selected

* Update fix

* shouldComponentUpdate

* Bug fixes

* ListView changes

* Bug fix

* render list bug fix

* Changes on public channels

* - RoomView saga leak removed
- Join room e2e tests added

* Rest versions

* Method call versions

* Min RocketChat version alert

* [FIX] Android stuck on splash screen after hardware button is pressed

* Fix empty user at asyncstorage

* Remove unused subscribe

New Authentication layout

* v2

* Working on Android 0.57.3

* Drawer working

* Removing v1 navigator

* - Splash screen
- Icons changed

* Deeplink

* Remove EventEmitter from CreateChannelView

* Android search

* Android notifications

* OAuth

* Fix search props

* Lint and tests fixed

* Fix android build

* Improvements on iPhone X* usage

* Fix detox

* Fix android build

* Room.f added to RoomView.shouldComponentUpdate

* Animations on RoomsListView and RoomView

* Fix topbar buttons on Android

* [FIX] Logout

* Removed realm instances on rooms list

* JS SDK

* API working

* Multiple servers

* [FIX] Handle deleted messages

* Fix rest error

* Fix some connection issues

* Update dependencies

* Lint and test

* Added react-native fork

* rn 57

* Lint and tests updated

* Update xcode on circleci

* Use legacy build system

* Update tests

* Inline requires

* Fix eslint and remove temp gradle

* Unnecessary renders

* Update isNotch and Readme

* Tests updated

* Update dependencies

* Lint and test

* Added react-native fork

* rn 57

* Lint and tests updated

* Update xcode on circleci

* Use legacy build system

* Update tests