feat: update whiteboard

dist/cjs/index.js

@@ -2,3 +2,5 @@
 Object.defineProperty(exports, "__esModule", { value: true });
 var Drawboard_1 = require("./board/Drawboard");
 exports.Drawboard = Drawboard_1.Drawboard;
+var Whiteboard_1 = require("./board/Whiteboard");
+exports.Whiteboard = Whiteboard_1.Whiteboard;

dist/types/index.d.ts

@@ -1 +1,3 @@
 export { Drawboard } from './board/Drawboard';
+export { Whiteboard } from './board/Whiteboard';
+export { WhiteboardMode } from './board/types';

src/index.ts

@@ -1 +1,3 @@
 export { Drawboard } from './board/Drawboard';
+export { Whiteboard } from './board/Whiteboard';
+export { WhiteboardMode } from './board/types';