How to disable AI editor suggestion?

When writing long messages, an AI editor suggestion button pops up on the right in the text box, see the screenshot below. 

This is intrusive, distracting, and totally uncalled for. 

I do not want my chat client to have this functionality. How can I disable it?

<img width="1179" height="400" alt="Image" src="https://github.com/user-attachments/assets/1feae2cc-9c37-412c-b504-b8af94cfdba1" />