Add attribution to the mobile view too

Co-authored-by: Copilot <copilot@github.com>

styles/Footer.module.scss

@@ -36,6 +36,7 @@
     align-items: center;
     margin-top: 20px;
     margin-bottom: 20px;
+    gap: 1rem;
   }
 
   .footer {
@@ -43,7 +44,11 @@
   }
 
   .middle {
-    visibility: hidden;
-    max-height: 15px;
+    order: 1;
+  }
+
+  .left, .right {
+    width: 100%;
+    text-align: center;
   }
 }