feat module 5 : change font size for find us label

src/pages/Home.jsx

               color: "inherit",
               display: "inline-block",
               fontWeight: "400",
-              fontSize: "1rem",
+              fontSize: {
+                xs: "1.8rem",
+                md: "2rem"
+              },
               mb: 4,
               letterSpacing: 0,
               textDecoration: "none",