feat(parser): SharedPost (#332)

Add support for SharedPost in community tab.
Related to issue #331

src/parser/classes/SharedPost.ts

@@ -0,0 +1,36 @@
+import { YTNode } from '../helpers.js';
+import Author from './misc/Author.js';
+import { YTNodes } from '../index.js';
+import Parser from '../parser.js';
+import Thumbnail from './misc/Thumbnail.js';
+import NavigationEndpoint from './NavigationEndpoint.js';
+import Text from './misc/Text.js';
+
+class SharedPost extends YTNode {
+  static type = 'SharedPost';
+
+  thumbnail: Thumbnail[];
+  content: Text;
+  published: Text;
+  menu: YTNodes.Menu | null;
+  original_post: YTNodes.BackstagePost | null;
+  id: string;
+  endpoint: NavigationEndpoint;
+  expand_button: YTNodes.Button | null;
+  author: Author;
+
+  constructor(data: any) {
+    super();
+    this.thumbnail = Thumbnail.fromResponse(data.thumbnail);
+    this.content = new Text(data.content);
+    this.published = new Text(data.publishedTimeText);
+    this.menu = Parser.parseItem(data.actionMenu, [ YTNodes.Menu ]);
+    this.original_post = Parser.parseItem(data.originalPost, [ YTNodes.BackstagePost ]);
+    this.id = data.postId;
+    this.endpoint = new NavigationEndpoint(data.navigationEndpoint);
+    this.expand_button = Parser.parseItem(data.expandButton, [ YTNodes.Button ]);
+    this.author = new Author(data.displayName, undefined);
+  }
+}
+
+export default SharedPost;