Bug: Excalidraw example is broken

[bitofbreeze]

The Excalidraw plugin example is broken https://lexical.dev/docs/demos/plugins/excalidraw

Lexical version: 0.5.0

Steps To Reproduce

1. Open the Excalidraw plugin example https://lexical.dev/docs/demos/plugins/excalidraw

Link to code example: https://codesandbox.io/s/lexical-excalidraw-plugin-example-4q08cv?from-embed

The current behavior

Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.

Check the render method of `ExcalidrawModal`.

The expected behavior

No error

[ivailop7]

Most of those code sandbox examples are broken, because they are outdated and I'm not sure who owns most of them. @acywatson @zurfyx shall we remove all code sandboxes from the documentation, quite a few of them are outdated and don't work. Maintaining them is quite hard due to the ownership of the sandboxes. Yet the value they add isn't high, since we have the playground. What do you think?

[bitofbreeze]

I know you can make codesandbox pull from this repo's examples folder so they are always kept up to date there. Would that help, or is the issue that the examples in this repo are not being maintained?

[thegreatercurve]

From what I've seen, these don't get a huge number of views compared to the main playground. It's a bit of a manual process to update them as well which is the reason they're breaking.

I'd be happy to remove these if everyone is just using the playground any way.