Remove font-size setting in mobile media query

Removed font-size adjustment for mobile layout.

Author: cb341

src/layouts/BaseLayout.astro

@@ -104,7 +104,6 @@ const structuredData = {
 
       @media (max-width: 880px) {
         body {
-          font-size: 0.7rem;
           padding: 0.5rem;
         }
         .mobile-table thead {