Adding a file when I've alrady typed some text

Describe the bug The command in the transient menu to /add some-file adds that text to the chat and executes it.

However, if I'm in the middle of typing someting already, the /add is just put at the end of the existing text and then my incomplete instruction is executed.

It would make sense to temporarily remove the current text, run the /add some-file command and then restore the text.

To Reproduce Steps to reproduce the behavior:

• Start session
• Enter some half finished instructions
• Go to another file, and use the transient menu to add it
• The half finished and now incomplete instructions are executed