invoke callback for suspend notification, even if no dom content

[sdetweil]

Please send your pull requests the develop branch.
Don't forget to add the change to CHANGELOG.md.

• Does the pull request solve a related issue?
• If so, can you reference the issue?
  1308
• What does the pull request accomplish? Use a list if needed.
  main/hideModule invoke module/hide callback even if no dom content
• If it includes major visual changes please add screenshots.
  no visual changes

[MichMich]

Thanks for your PR. It seems something went wrong with the changelog file. All previous entries should remain.

[MichMich]

The PR seems to contain some listing errors. See the contribution policy for more info on how to solve this: https://github.com/MichMich/MagicMirror/blob/8010e6220d4cc68e9f9e3c1029998cc47df0f193/.github/CONTRIBUTING.md

[MichMich]

Great! Thanks for your contribution!