Bug fixes

- Fixed for docs.
- Micro optimizations.
- Simplified UltimenuManager::buildFlyout() signatures.
- Cleaned up useless things.

Added fixes that were proposed in the following issues:
https://www.drupal.org/project/disable_language/issues/3044167
https://www.drupal.org/project/disable_language/issues/3046684
https://www.drupal.org/project/disable_language/issues/3030429

Fixed many bugs and adds support for Tripal v3.

• #3045657: Allows customers to add/update usernames on Settings form.
• #3050816: Ability to mark all locations closed for holidays and staff in-service days
• #3050816: Bug - Staff Can't Access Event Menu From Mobile Phones
• #3050816: Easier event registration by staff
• #3050816: Room Reservation Display (all day booking)

)

* Make it possible to extract index files in a sub-directory.