screen: Show suggestion if the commandline was pushed to a new line

Pretty sure this was just overlooked, the comment mentions that it
should happen and it seems to work.

Fixes #7213.

src/screen.cpp

@@ -1093,6 +1093,7 @@ static screen_layout_t compute_layout(screen_t *s, size_t screen_width,
             prompt_percent_width > 33) {
             result.prompts_get_own_line = true;
         }
+        result.autosuggestion = autosuggestion;
     }
 
     return result;