WooCommerce Memberships 1.26.9

* Fix - Prevent issues with numeric options in dropdown profile fields
* Fix - Address some CSS styling issues within the Memberships rules meta box in smaller viewports
* Fix - When saving a profile field from the admin and there are issues related to inputs in one meta box tab, switch the tab to foreground to highlight the issue

* Fix - Make the "Redirect members upon login" setting effective also when users are logging in from the standard WordPress login form

* Fix - Fix an upgrade script to avoid showing some notices to users who did not have free add ons installed
* Fix - Improve compatibility with Twenty Twenty and Twenty Twenty-One WordPress themes
* Fix - Ensure that the product price HTML of member discounted subscription products does not carry duplicated strings
* Fix - Restore the functionality of an alert when setting blanket rules to a plan on some browsers