Disable predictions for screen readers

Because they'll be rendered and it's useless noise.

Author: andyleejordan

PSReadLine/Options.cs

@@ -188,6 +188,12 @@ private void SetOptionsInternal(SetPSReadLineOption options)
             if (options._screenReader.HasValue)
             {
                 Options.ScreenReader = options.ScreenReader;
+
+                // Disable prediction for better accessibility
+                if (Options.ScreenReader)
+                {
+                    Options.PredictionSource = PredictionSource.None;
+                }
             }
         }