Cannot disable asset-manager

Hi @BerkeAras !

I don't think there's currently a way to completely disable the Asset Manager, you should however be able to disable adding images.

Setting the upload option to false only disables uploading of images, but not base64 embedding. Which is why images can still be added.

Also disabling base64 embedding like the following might be the closest you can get:

assetManager: {
    upload: false,
    autoAdd: false,
    embedAsBase64: false
}