Bug fixes

Corrections
- Test the presence of the file
- Keeps the settings between LESS and CSS configuration

Bug fixes before new features integration.

Add admin menu link #3028880
Fix logs errors #3040197
Fix code errors.
Change db structure.

This is the first beta release of Search API Solr Search 8.x-3.0.

The big changes:

v1.17

• Added support for webforms as first Config entity
• Added smarter dependency management to resolve entity references as soon as the entities become available
• Added support to force pull all entities for Flows
• Added support for resetting overridden entities
• Added support for yearonly field
• Added "Show usage" and "Push changes" links to "Sync Status" views field
• Added migration path from Acquia Content Hub
• Added pool filter when editing an entity if more than 10 pools are available
• Improved version handling at the Sync Core for significantly better performance
• Simplified Flow form by hiding 80%-90% of all settings by default
• Improved user messages
• Improved paragraph field widget support to cover custom paragraph widgets
• Fixed notices and improved codestyle
• Fixed issue with overwrites when using the same entity in multiple Flows
• Fixed issue with taxonomy tree weights
• Fixed issue with dynamic entity reference at status entities not being set for cross sync
• Fixed issue with "is source site" flag not being set correctly for cross sync
• Fixed issue with entities being listed as dependencies even without "Export referenced entity" being set
• Improved Flow overview description below the table

• #3043351: Use datatables JS translations
• #3043349: Make dates translatables

Removed unused module.
Changed functionality for listing files.
Fixed bug on Cron REST service.