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.
"wc_get_gallery_image_html" checks;
Use helper function which has more filters and moves logic out of template files "wc_get_gallery_image_html";
^ This also called for some more changes to the rest of the code. Woo introduced this to be compatible with 3.3.2
Per new Woo template files;
Making identical to Woo files;
Add spaces;
Formatting;
Add period to exit text;
loop/orderby.php removes exit text, this is identical to Woo files and we should keep it unless they change. This will make it easier to compare templates;
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.