Bug fixes

• Fixes a bug with main CSS file not getting included in storybook upon subtheme generation
• Improves the structure of components

Allows us to add one or more "Splash Screens screenshot", which are modal popups.

• Issue #3120794: Updated [Drupal core] from 8.8.2 to 8.8.4 ( ~8.8.0 ) and Updated VarbaseContext for the Automated Functional Acceptance Testing groups
  Drupal core - Moderately critical - Third-party libraries - SA-CORE-2020-001

• Issue #3113113: Drupal 9 readiness for [Varbase distribution] installation profile with Drupal coding standard and practice

• Issue #3113066: Integrated with advanced Layout Builder UX behaviours
  
• Issue #3116225: Added and render a [Section title] field for configured sections layouts

Issue #3122970 by ChristianAdamski: Geocoder search field not working in second geolocation field
Issue #3119742 by ChristianAdamski: Views Proximity field using the Places API and AJAX - only works once
Issue #3113710 by nikita_tt: Address integration inside an Inline Entity Form
Issue #3117506 by ChristianAdamski: Defining locations not possible when placing block in Layout Builder
Issue #3117883 by ChristianAdamski: Cannot create/edit views Proximity filter

leaflet.drupal.js refactoring: better working Map Reset Control.

Fixes #3101345: Drupal 8.8.x+ - Notice: Undefined index: field_name.