message: Include magnet scheme in sanitize HTML params
  Update HtmlUtils sanitze-html params to include the magnet scheme
diff: @@ -152,7 +152,7 @@ const sanitizeHtmlParams = {
  // Lots of these won't come up by default because we don't allow them
  selfClosing: ['img', 'br', 'hr', 'area', 'base', 'basefont', 'input', 'link', 'meta'],
  // URL schemes we permit
  - allowedSchemes: ['http', 'https', 'ftp', 'mailto'],
  + allowedSchemes: ['http', 'https', 'ftp', 'mailto', 'magnet'],
  allowProtocolRelative: false,
  