Summary: Added Food Sensitivities Testing

Why It Matters: This adds a new type of lab test that customers can buy.

What Changed:

• Added "Food Sensitivities Testing" to the list of lab tests.
• Changed the number of reviews for Magnesium Glycinate from 25 to 27.
• Updated the "Last Weekend Up to 60% Off" sale text to "Last Day Up to 60% Off".
• Added a new section at the very end of the page with a question and a submit button.