Last minute fix

Author: Jeffser

src/window.py

@@ -186,6 +186,7 @@ def send_message(self, button=None):
             shutil.copy(content['path'], os.path.join(self.data_dir, "chats", self.chats['selected_chat'], id, name))
             content["button"].get_parent().remove(content["button"])
         self.attachments = {}
+        self.attachment_box.set_visible(False)
 
             #{"path": file_path, "type": file_type, "content": content}