Adjusting the responsive display of flow content and fixing line break bugs

【Contents of fix】
■Fixed a bug where the background color setting was not reflected in some cases.
■Fixed a bug where the background color setting was not reflected.
■Fixed a bug in which line feeds using the Enter key did not work when entering content in table and flow creation.

The following files have been modified for this update.
【Corrected files】
plugins/tcd-workflow/design-plus-contact-form.php
plugins/tcd-workflow/flow.php
plugins/tcd-workflow/form.php
plugins/tcd-workflow/new-form.php
plugins/tcd-workflow/readme.txt
plugins/tcd-workflow/table.php

For details, please refer to the download site for purchasers of AGENT (tcd033).