feat(parser): Support LockupView and it's child nodes (#609)

src/parser/classes/CollectionThumbnailView.ts

@@ -0,0 +1,23 @@
+import { YTNode } from '../helpers.js';
+import { Parser, type RawNode } from '../index.js';
+import ThumbnailView from './ThumbnailView.js';
+
+export default class CollectionThumbnailView extends YTNode {
+  static type = 'CollectionThumbnailView';
+
+  primary_thumbnail: ThumbnailView | null;
+  stack_color: {
+    light_theme: number;
+    dark_theme: number;
+  };
+
+  constructor(data: RawNode) {
+    super();
+
+    this.primary_thumbnail = Parser.parseItem(data.primaryThumbnail, ThumbnailView);
+    this.stack_color = {
+      light_theme: data.stackColor.lightTheme,
+      dark_theme: data.stackColor.darkTheme
+    };
+  }
+}