fix parcel appendTo

[SeverS]

Hi, This pr fixes #157 by swapping the lines L50 with L51 in parcel.js

Minimal repro repository: https://github.com/SeverS/single-spa-react-repro gh-pages: https://severs.github.io/single-spa-react-repro/

As you can see on gh-pages the button parcel works as expected when inline but when you click it it will throw an error in the console and the 'modal' parcel will never be mounted.

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: f0d249525123b02edea695c710e984a6dd2cfcf5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
single-spa-react	Patch

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[SeverS]

gm @MilanKovacic , can you help me adding the reviewers to this pr? thanks a lot!

[MilanKovacic]

Hi, thank you for submitting the pull request. I will take a look. While waiting for the release, I recommend using https://www.npmjs.com/package/patch-package.