Hints for metadata-cleaner in main

Warnings

• screenshot-download-error
  Error while downloading screenshot from 'https://metadatacleaner.romainvigier.fr/screenshots/1.png': Failed to download file: Could not resolve host: metadatacleaner.romainvigier.fr
  This might be a temporary server issue, or the screenshot is no longer available.
• screenshot-download-error
  Error while downloading screenshot from 'https://metadatacleaner.romainvigier.fr/screenshots/2.png': Failed to download file: Could not resolve host: metadatacleaner.romainvigier.fr
  This might be a temporary server issue, or the screenshot is no longer available.
• screenshot-download-error
  Error while downloading screenshot from 'https://metadatacleaner.romainvigier.fr/screenshots/3.png': Failed to download file: Could not resolve host: metadatacleaner.romainvigier.fr
  This might be a temporary server issue, or the screenshot is no longer available.
• screenshot-download-error
  Error while downloading screenshot from 'https://metadatacleaner.romainvigier.fr/screenshots/4.png': Failed to download file: Could not resolve host: metadatacleaner.romainvigier.fr
  This might be a temporary server issue, or the screenshot is no longer available.