feat: support updating library in updateScene API (#4546)

* feat: support updating library in updateScene API

* fix

* update docs

* Update src/packages/excalidraw/CHANGELOG.md

src/packages/excalidraw/CHANGELOG.md

@@ -19,6 +19,8 @@ Please add the latest change on the top under the correct section.
 
 ### Features
 
+- Support updating library using [`updateScene`](https://github.com/excalidraw/excalidraw/blob/master/src/packages/excalidraw/README.md#updateScene) API [#4546](https://github.com/excalidraw/excalidraw/pull/4546).
+
 - Introduced primary colors to the app. The colors can be overriden. Check [readme](https://github.com/excalidraw/excalidraw/blob/master/src/packages/excalidraw/README.md#customizing-styles) on how to do so.
 
 - #### BREAKING CHANGE

src/packages/excalidraw/README_NEXT.md

@@ -509,6 +509,7 @@ You can use this function to update the scene with the sceneData. It accepts the
 | `appState` | [`ImportedDataState["appState"]`](https://github.com/excalidraw/excalidraw/blob/master/src/data/types.ts#L18) | The `appState` to be updated in the scene. |
 | `collaborators` | <pre>Map<string, <a href="https://github.com/excalidraw/excalidraw/blob/master/src/types.ts#L29">Collaborator></a></pre> | The list of collaborators to be updated in the scene. |
 | `commitToHistory` | `boolean` | Implies if the `history (undo/redo)` should be recorded. Defaults to `false`. |
+| `libraryItems` | [LibraryItems](https://github.com/excalidraw/excalidraw/blob/master/src/types.ts#L258) | The `libraryItems` to be update in the scene. |
 
 ### `addFiles`
 

src/packages/excalidraw/example/App.js

@@ -103,6 +103,24 @@ export default function App() {
           >
             Reset Scene
           </button>
+          <button
+            onClick={() => {
+              excalidrawRef.current.updateScene({
+                libraryItems: [
+                  {
+                    status: "published",
+                    elements: initialData.libraryItems[0],
+                  },
+                  {
+                    status: "unpublished",
+                    elements: initialData.libraryItems[1],
+                  },
+                ],
+              });
+            }}
+          >
+            Update Library
+          </button>
           <label>
             <input
               type="checkbox"