mengubah logo dan warna via WA

src/views/ProductDetailView.vue

@@ -45,7 +45,7 @@
         </div>
 
         <div class="mt-8 flex flex-wrap gap-3">
-          <a :href="waLink" target="_blank" class="btn-primary">Hubungi via WhatsApp</a>
+          <a :href="waLink" target="_blank" class="btn-WA">Hubungi via WhatsApp</a>
           <button class="btn-secondary" @click="toggleSave">
             {{ saved ? "Hapus dari Tersimpan" : "Simpan Barang" }}
           </button>