Webcode-tk

The Stylesheet object now removes any at import url() statements if the imported sheet is external (http or https).

Previously, CSS was unable to get a color ruleset if it was the background shortcut.

Version 0.3.6 - trying to fix release yaml file.

Fixing the release.yml and pre-release.yml to use new poetry to install dependencies.

Making the Declaration object (in css.py) continue to document any validity errors in the newly made invalid_message property.

It throws exceptions based on various issues with Declarations, but it captures them in the message, so one can still capture a Stylesheet but identify whether there were any validity issues with a declaration.

This could be a pattern I apply going forward.