Prevent overriding default renderToMarkdown options

[DrewJohnsonGT]

Changes Overview

The renderToMarkdown function options are being spread in a way that will override the default nodeMapping or markMapping options when provided

So there is no way to simply override one node or mark mapping without overriding all of them.

Implementation Approach

Simply destructuring the options and spreading specifically to nodeMapping and markMapping to prevent the final ...options from overriding the defaults

Verification Steps

Add a single custom or default override to nodeMapping Ex:

renderToMarkdown({
  content: editor.getJSON(),
  extensions: editor.extensionManager.extensions,
  options: {
    nodeMapping: {
      templateInput: (props) => {
        return `{{${props.node.attrs.inputName}}}`;
      },
    },
  },
});

See that other default nodeMappings like listItems, headings etc are still rendered to markdown as expected

Additional Notes

Checklist

• [X] I have created a changeset for this PR if necessary.
• [X] My changes do not break the library.
• [X] I have added tests where applicable.
• [X] I have followed the project guidelines.
• [X] I have fixed any lint issues.

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: c219be0faf22a51a632039d7565d704b53794d99

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[DrewJohnsonGT]

@bdbch should this just be closed per This is not a full implementation of a markdown renderer.. For people wanting to extend from this starting point they'll just need to copy the source code and adjust (which is what I have done) I also know there is more direct markdown support coming in the future so understand if this doesn't make sense to change at this time

On the other hand, this is a really small change that does allow extending this function without copying the full source code 🤷