Fixes many WPCS errors and warnings
Also:
* Partly removes excessive php opening/closing tags.
* Uses printf for better readability in loop-templates/content-none.php.
* Adds understrap_kses_title() to escape post titles.
* Adds understrap_escape_the_archive_description() to escape the archive description.
* Fixes missing '__' after esc_html in author.php.
* Updates the phpcs.xml to reflect all the changes.
* Updates composer dependencies and scripts.
Set templates to most updated version from Woo, the version they are based on;
Adjust formatting to be identical to Woo;
Not all versions are 3.3.0, we should reflect the WooCommerce templates so that we know which version they are based on. There are instances where seemingly older versions are the most current.