* feat: Returns an error on join request with no display name.

When someone tries to join a room with lobby enabled and display name is not set returns an error.

* squash: Fixes handling DISPLAY_NAME_REQUIRED with preJoin disabled.

* squash: Fixes mobile build.

* squash: Move isDisplayNameRequired redux state in lobby and introduces isDisplayNameRequiredError.

* squash: Drops unused isDisplayNameRequired.

This was used on showing prejoin when connection was established on showing prejoin. We no longer establish it at that time, so it is not possible to hit it and act on it.

Remove Abstract component
Convert web component to function component

feat(a11y): Globally improve accessibility for screen reader users

Use correct types for action, dispatch and getState

Move styles from SCSS to JSS
Convert class to function component

Fix imports
Convert some files to TS

Fix imports

* feat(notifications): native notifications UI updates

Remove unnecessary @ts-ignores
Remove unnecessary eslint-disable

feat(lobby/prejoin/native): style updates (#12615)

feat(base/ui/native): replaced react native TextInput component with our native Input component

Remove unused icons
Remove fill none from icons
Rename some icons

Remove global variables from files
Change type to interface

* 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>

Remove unnecessary ts-ignores
Remove unnecessary eslint-disable
Fix type errors
Change Dispatch type to IStore['dispatch']

Use new TS config from @jitsi/eslint
Fix all lint errors

Create IStateful interface
Use IState interface everywhere
Remove unnecessary @ts-ignore

The room name could be a UUID and the conference display name an actual
name, using the subject.

* feat(base/native): Switch thumbColor and trackColor default props

Bring Switch component more in line
Convert some files to TS

* feat(lobby/prejoin): added room name title

Bring web and native more in line

Remove unnecessary ts-ignores

feat(settings/native): feature updates

* feat(base): created Button.tsx and IconButton.tsx

* feat(base/modal) added keyboard dismiss functionality

* feat(lobby) updated ui and start knocking if name is set

* feat(prejoin) updated ui and hide input if name is not required

* feat(prejoin) updated join button styles

* feat(prejoin) removed extra empty space

* feat(prejoin) updated disable join condition

* feat(base/modal) moved keaboard dismiss functionality

* feat(conference) updated auto knock condition

* feat(prejoin) updated button styles and disabling condition

* feat(lobby) updated styles

* feat(lobby/prejoin) updated styles for buttons and inputs

* feat(lobby/prejoin) updated contentContainer styles

* feat(lobby/prejoin) created shouldEnableAutoKnock helper

* feat(prejoin) created native Prejoin screen

* feat(prejoin) fixed useState callback and updates warnings

* feat(prejoin) created styles file

* feat(prejoin) moved nav from middleware to appNavigate, created native DeviceStatus

* feat(prejoin) updated styles

* feat(prejoin) review remarks pt. 1

* feat(prejoin) removed unused styles

* feat(prejoin) review remarks pt. 2

* feat(prejoin) comment fix

* feat(prejoin) added header title

* feat(prejoin) review remarks

* feat(lobby) updated styles

* feat(prejoin) updated lobby screen header button functionality

* feat(prejoin) review remarks pt 3

* feat(welcome) removed VideoSwitch component

* feat(mobile/navigation) fixed linter

* feat(welcome) moved isWelcomePageEnabled to functions.ts

* feat(mobile/navigation) screen options and order updates

* feat(app) review remark

* feat(welcome) added translation for screen header title and fixed build

* feat(mobile/navigation) added screen title translation and created screen option

* feat(mobile/navigation) fixed screenOptions import

* feat(mobile/navigation) added DialInSummary title translation, fixed animation and close button

* feat(welcome) fixed build

* feat(welcome) removed extra check

* feat(prejoin) review remarks pt 4

* feat(prejoin) added Join in low bandwidth mode btn

* feat(welcome) changed welcome screen header title

* fixup lobby close

It allows us to place the Cancel button there, and declutter the UI of
buttons.