[docs][material-ui] Fix crashing of DraggableDialog demo

[sai6855]

fixes #44810

Logic taken from #44747 applied to v5.x branch

working preview: https://deploy-preview-44811--material-ui.netlify.app/material-ui/react-dialog/#draggable-dialog

[mui-bot]

Netlify deploy preview

https://deploy-preview-44811--material-ui.netlify.app/

Bundle size report

No bundle size changes (Toolpad)
No bundle size changes

Generated by 🚫 dangerJS against 8f39c8b

[sai6855]

@aarongarciah do you have any insight on why ci/circleci: test_e2e is failing?

[aarongarciah]

@sai6855 it's probably related to the UMD build. @DiegoAndai pinned the UMD versions on the example being used in the test:umd script. See #44706.

The error is not the same though:

• This PR's error is Cannot read properties of undefined (reading 'A'). See: https://app.circleci.com/pipelines/github/mui/material-ui/144986/workflows/1c3568c7-ee3e-4ea6-8114-15f58449d8b6/jobs/780533?invite=true#step-113-217_68

  // The error comes from
  function getOwner() {
    var dispatcher = ReactSharedInternals.A;
    return null === dispatcher ? null : dispatcher.getOwner();
  }
  
  // `ReactSharedInternals` comes from `ReactSharedInternals = React$1.__CLIENT_INTERNALS_DO_NOT_USE_OR_WARN_USERS_THEY_CANNOT_UPGRADE`

• The error fixed by Diego was React__namespace.createContext is not a function. See: https://app.circleci.com/pipelines/github/mui/material-ui/144395/workflows/871be994-df23-40c1-bcb5-354ff6720ae5/jobs/777405?invite=true#step-113-216_67

I'm clueless on why this started to fail now.

[DiegoAndai]

Looking into it

[DiegoAndai]

The reason is that after bumping React 19, we're trying to build the UMD files using React 19, which isn't supported. I'm working on a solution to rely on React 18 only for the UMD build process.

[DiegoAndai]

Opened a PR to fix it: #44815

[DiegoAndai]

@sai6855 the fix has been merged, please re-run the CI