Changes

• Updated bundled JavaScript libraries jQuery, jQuery UI, and Moment.js.
• Added the setting to configure default search for responsible.
• Changed default value for Frontend::Avatar and using https when connecting gravatar.com.
• Removal of all permissions during LDAP synchronization if the user is not a member of any group.
• Snippets in the rich text editor are now shown sorted by name.
• Remove orphaned mentions after deleting tickets.
• Fixed the Select All function in the Dynamic Fields Screen module.
• Fixed the prefilled subject in Activity dialogues to work for customer users.
• Prevent using system addresses in phone tickets.
• Added the missing scrollbar in the popup windows when creating calendar appointments.