New Features

• dateElementProps utility functions and file deletion support in the FileWidget

@rjsf/core

• Pass indexed title from array into its items, adding enhancement asked in #3983
• Removed dateElementProps function implementation, and replaced it with getDateElementProps from @rjsf/utils.
• Modify submit method to make it a public method, fixing #4015
• Support file deletion for format: "data-url" in FileWidget, fixing #3957.

@rjsf/antd

• Removed dateElementProps function implementation, and replaced it with getDateElementProps from @rjsf/utils.

@rjsf/chakra-ui

• Removed dateElementProps function implementation, and replaced it with getDateElementProps from @rjsf/utils.

@rjsf/mui

• Updated the FieldErrorTemplate and FieldHelpTemplate to support html-based errors that cause <xxxx> cannot appear as a descendant of <p> browser warnings, fixing #4031

@rjsf/utils

• Added getDateElementProps() to refactor duplicate function in core, antd & chakra-ui AltDateWidget's source code. The same function, implements the feature requested in #297

Dev / docs / playground

• Updated docs and playground with the implementation guide of newly added date re-order feature.