Add shortcode and block options to [give_form] to show/hide countdown

[mathetos]

Issue Overview

Current Behavior

Form Countdown works great on single form pages. But if you embed it as a shortcode or a block you don't have any options to show/hide. That could be really useful.

Expected Behavior

I expect to be able to show/hide the countdown when using the shortcode or block

Related

User request:
https://www.facebook.com/groups/givewp/permalink/899597367169154/

Todos

• Implement shortcode arg countdown=show|hide in [give_form] shortcode
• Confirm both show/hide work in the shortcode as intended
• Implement a toggle in the Give Form Gutenberg block to show/hide the countdown