VIDEO 4078 Conversations - Add flip camera button to 'more' mobile menu

* Add initial hooks for chat

* Update hooks in chat provider

* Add tests for conversationProvider component

* Fix DeviceSelectionScreen tests

* Update variable names

* Revert proxy url in package.json

* Fix linting issues

* Make error handling more user friendly

* Fix a test in src/state

* Temporarily disable cypress tests

* Undo prettier changes to config.yml

* Update chatProvider test

* Cleanup ChatProvider

* Add links to TextMessage component

* Update CSS in TextMessage

* Update snapshot test

* Fix issue in addLinks function

* Use forEach loop in addLinks function

* Use new server with reused code

* Add firebase auth to server

* Convert server to typescript

* Add tests for firebaseAuthMiddleware

* Refactor server

* Add more server tests

* Add tests for CreateExpressHandler

* Fix linter issue

* Delete old server

* Fix linter issues

* Fix some server issues

* Set up server build steps

* Change request to match new server api

* Fix token fetch test

* Add server build step to circleci config

* Enable cyress tests in CI

* Undo prettier changes in config.yml

* install plugin-rtc from npm

* Fix firebaseAuth test

* Add create_conversation:true to token requests

* Upgrade plugin-rtc to 0.8.0

* Temorarily remove firebaseAuthMiddleware and recording rules route

* Add ChatProvider back in

* Update .env.example

* Change build:server script

* Add firebaseAuthMiddleware

* Add comments to firebaseAuthMiddleware

* Update useFirebaseAuth tests

* Add notification to chat icon

* Add tests for ToggleChatButton

* Some cleanup

* Fix linting issue

* Update MessageList component to change how messages are grouped

* Simplify MessageList code

* Add FileAttachmentIcon

* Add File Input to ChatInput component

* Add change handler to file input

* Create MediaMessage component and add it to MessageList

* Toggle ChatWindow visibility with CSS

* Update messageList tests

* Add function to format the file size

* Update error handling in ChatInput component

* Add tests for MediaMessage component

* Update snapshot test

* Add tests for ChatInput

* Fix linting issue

* Update filesize formatting

* Update error language and tests

* Reset file input value after file sent

* Center icon in MediaMessage

* Update Icon size

* Fix breaking ChatInput test

* Update snapshot

* Use accept attribute on file input element

…ions api

* Update app.yaml for the new server

* Add cache controls for static assets

* Only hide Screenshare button on mobile devices

* Auto focus on chat input when user opens chat window

* Fix iOS bug with media messages

* Fix issues in MessageListScrollContainer

* Fix app.yaml

* Fix infinite loop when there is a conversations error

* Update tests for ChatInput

* Update mediamessage test

* Update menubar tests

* Update messageList snapshot

* Fix linting issue

* Add comments to the server

* Update plugin-rtc version

* Add feature flag for Twilio Conversations

* Add tests

* Add info to .env.example

* Update readme with info about twilio conversations

* Update readme to address feedback

* Bump version and update changelog

* Add plugin-rtc upgrade instructions to the readme