Post button should not disappear when keyboard is hidden

With recent update, on iPhone mobile app, post button is hidden when the keyboard is hidden. This makes it difficult to quickly check previous posts or images before sending, which is a problem in active chats. This also makes it more difficult to paste and send a message when you do not need to type. The “Message #...” box does not need to be this large as it essentially serves as a button to bring up the keyboard in mobile and takes up almost the entire bottom bar menu.