Bug fixes

• Change redirect submodule: check redirect doubles
• Fix errors at YML files
• Change main page view

* Issue #3100189 by wolfhowling: Removed deprecated functions
* Removed folders containing unresolved tokens.

Improve detecting simplenews form IDs in the alter hooks.

composer.json fix.

• Added window parameters support for VisualNDrawerSkin plugins
• Hide margin around drawing iframe content
• Added skins key to Drupal.visualnData visualn-core.js global object default keys
• Show drawing type name for embedded drawings ckeditor placeholders
• Use "lng" instead of "lon" data key for LeafletMapBasicDrawer and LeafletMapBasicDataGenerator plugins
• Fixed LeafletMapBasicDrawer calculate_center setting for the case of single point in data set
• Check if hook_page_top implementations override for visualn_iframe is required

Did many performance tunings and ensured compatibility to drupal 8.8.1

cheers!