Feature: #68282 - Make DatabaseRecordList configurable to be editable

See forge#68282

Description

A new property editable is added to \TYPO3\CMS\Recordlist\RecordList\DatabaseRecordList which is set to TRUE by default. If set to FALSE, the records can't be edited.

Impact

The record list in the Element Browser benefits from the new setting as the localization view is now enabled. This will show editors translated records properly intended below the record with the default language.