feat(tailwind.css): add and style border-ul class

src/styles/tailwind.css

@@ -52,4 +52,12 @@
       rgba(var(--color-gradient-end) / 0.1) 50%
     );
   }
+
+  .border-ul {
+    border: none;
+    border-radius: 0;
+    border-bottom: .25rem solid rgb(var(--color-gray-500) / var(--tw-border-opacity));
+    box-shadow: none;
+  }
+
 }