Problem with overwriting in "llm chat" line wrapping #582
Description
In an "llm chat" prompt (single-line input), whenever I reach the last column of the line, the cursor overwrites a single character and starts confusing where the line begins.
In this example, I show the problem by slowly typing "test" at the end of the line and then typing C-u to go back to the beginning of the line. The "e" in test at the end of the line is gone and then the space between the ">" prompt and where I am typing is gone.
