[packages] Add @deprecated annotations to deprecated APIs (expo#9959)

# Why

_This follows the TS 4.0 update PR: #9960_

Typescript 4.0 comes with support for `@deprecated` annotations, which gives nice VS Code (and probably other IDE) messages informing users about API deprecation. It also marks deprecated methods/properties with ~~Strikethrough~~.

See [this](https://devblogs.microsoft.com/typescript/announcing-typescript-4-0/#deprecated-support) and microsoft/TypeScript#38523

# How

- Added appropriate annotations to every possible deprecated Expo API that I found.
- Updated existing comments to play nice with VS Code messages

Also, added note about dead code in Notifications, which is related to expo#9563 (I forgot to add it then)

> Not sure what to do with changelogs ❓ 

# Test Plan

Tested messages in VS Code with _TS 4.0.2_ enabled.

build/Audio/Recording.d.ts

@@ -120,6 +120,7 @@ export declare class Recording {
  pauseAsync(): Promise<RecordingStatus>;
  stopAndUnloadAsync(): Promise<RecordingStatus>;
  getURI(): string | null;
+ /** @deprecated Use `createNewLoadedSoundAsync()` instead */
  createNewLoadedSound(initialStatus?: AVPlaybackStatusToSet, onPlaybackStatusUpdate?: ((status: AVPlaybackStatus) => void) | null): Promise<{
  sound: Sound;
  status: AVPlaybackStatus;

build/Audio/Sound.d.ts

@@ -14,6 +14,7 @@ export declare class Sound implements Playback {
  _eventEmitter: EventEmitter;
  _coalesceStatusUpdatesInMillis: number;
  _onPlaybackStatusUpdate: ((status: AVPlaybackStatus) => void) | null;
+ /** @deprecated Use `Sound.createAsync()` instead */
  static create: (source: AVPlaybackSource, initialStatus?: AVPlaybackStatusToSet, onPlaybackStatusUpdate?: ((status: AVPlaybackStatus) => void) | null, downloadFirst?: boolean) => Promise<{
  sound: Sound;
  status: AVPlaybackStatus;

src/Audio/Recording.ts

@@ -365,6 +365,7 @@ export class Recording {
  return this._uri;
  }
 
+ /** @deprecated Use `createNewLoadedSoundAsync()` instead */
  async createNewLoadedSound(
  initialStatus: AVPlaybackStatusToSet = {},
  onPlaybackStatusUpdate: ((status: AVPlaybackStatus) => void) | null = null

src/Audio/Sound.ts

@@ -26,6 +26,7 @@ export class Sound implements Playback {
  _coalesceStatusUpdatesInMillis: number = 100;
  _onPlaybackStatusUpdate: ((status: AVPlaybackStatus) => void) | null = null;
 
+ /** @deprecated Use `Sound.createAsync()` instead */
  static create = async (
  source: AVPlaybackSource,
  initialStatus: AVPlaybackStatusToSet = {},