bug: isNode judge is inaccurate in server side rendering

[zhangyuang]

Check that this is really a bug

• I confirm

Reproduction link

https://github.com/zhangyuang/swiper-bug-isnode

Bug description

// src/utils/utils.js
function isNode(node) {
  // eslint-disable-next-line
  if (typeof window !== 'undefined') {
    return node instanceof HTMLElement;
  }
  return node && (node.nodeType === 1 || node.nodeType === 11);
}

The judge is very inaccurate, in server side render, framework self or users maybe mock a window object in server side is frequent

Maybe there should judge at a deeper level。for example, window.document,window.document.documentElement or window.screen

Expected Behavior

No response

Actual Behavior

No response

Swiper version

6.8.0

Platform/Target and Browser Versions

macos

Validations

• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.
• Make sure this is a Swiper issue and not a framework-specific issue

Would you like to open a PR for this bug?

• I'm willing to open a PR

[zhangyuang]

For the issue， the corresponding pr is #4788

if (typeof window !== 'undefined' && typeof window.screen !== 'undefined') {
    return node instanceof HTMLElement;
  }

[lhtdesignde]

@zhangyuang I updated to 6.8.1 and still seeing this, I guess, related error: ReferenceError: HTMLElement is not defined.
This comes up in a mocha/enzyme test.