Fix: Corregir contenedor de input para que no se comprima y muestre preview

app/pages/messages/index.vue

@@ -226,17 +226,7 @@
           </div>
 
           <!-- Input - grows when media is selected -->
-          <div
-            class="p-4 border-t border-[var(--wa-border)] transition-all duration-300 ease-out"
-            :class="{ 'min-h-[200px]': debugExpanded }"
-          >
-            <!-- Debug button -->
-            <button
-              @click="debugExpanded = !debugExpanded"
-              class="absolute right-2 top-2 text-xs px-2 py-1 bg-yellow-600 text-white rounded z-10"
-            >
-              {{ debugExpanded ? 'Contraer' : 'Expandir' }}
-            </button>
+          <div class="relative p-4 border-t border-[var(--wa-border)] flex-shrink-0">
             <MessagesMessageInput
               :replying-to="replyingTo"
               @send="handleSendMessage"
@@ -285,7 +275,6 @@ const hasMoreMessages = ref(true)
 const showDebugPanel = ref(false)
 const showChatsDebug = ref(false)
 const showSelectedChatDebug = ref(false)
-const debugExpanded = ref(false)
 
 // Instance options for selector
 const instanceOptions = computed(() =>