fix: make history local to a given excalidraw instance (#3481)

* fix: make history local to a given excalidraw instance

* changelog

* Update src/packages/excalidraw/CHANGELOG.md

src/tests/contextmenu.test.tsx

@@ -62,7 +62,6 @@ describe("contextMenu element", () => {
   beforeEach(async () => {
     localStorage.clear();
     renderScene.mockClear();
-    h.history.clear();
     reseed(7);
     setDateTimeForTests("201933152653");