Adds the full time and date to the date column for those that find the ‘1 hour ago’ stupid.
This isn’t the best fix going, since the core function render_order_date_column in https://github.com/woocommerce/woocommerce/blob/a7d57a248ed03dac7bad119e71f83dd961f43cb3/includes/admin/list-tables/class-wc-admin-list-table-orders.php
does not (imo) implent a filter correctly. You can add a filter for the date column, BUT it’s only effective on the field for orders greater than 1 day.
This is a quick fix to add a full time and date alongside the ‘1 hour’ output without affecting it or duplicating the output on orders greater than 1 day.