[FE][Certs] Add shadow to matpel 3 carnet's code

frontend/src/utils/carnetGenerator.ts

@@ -67,6 +67,17 @@ Ef1mCe5qmP0NN2NWX/bcn/PJfzo/tyX/AJ4r+dT/AGbirfD+
JX1umaRUjtSGs1talPWNfzpv9rt
             >
                 DNI: ${dni}
             </text>
+            <text
+                text-anchor="middle"
+                x="100.5"
+                y="134.5"
+                font-size="9"
+                font-family="Amiri"
+                fill="#101010"
+                font-weight="bold"
+            >
+                ${code}-EEG-${expiryYear}
+            </text>
             <text
                 text-anchor="middle"
                 x="100"