build: decouple package deps and introduce yarn workspaces (#7415)

* feat: decouple package deps and introduce yarn workspaces

* update root directory

* fix

* fix scripts

* fix lint

* update path in scripts

* remove yarn.lock files from packages

* ignore workspace

* dummy

* dummy

* remove comment check

* revert workflow changes

* ignore ws when installing gh actions

* remove log

* update path

* fix

* fix typo

packages/utils/index.js

@@ -0,0 +1,5 @@
+export {
+  exportToBlob,
+  exportToSvg,
+  exportToCanvas,
+} from "../excalidraw/packages/utils.ts";