patch 8.1.0036: not restoring Insert mode if leaving prompt buffer with mouse

Problem:    Not restoring Insert mode if leaving a prompt buffer by using a
            mouse click.
Solution:   Set b_prompt_insert appropriately. Also correct cursor position
            when moving cursor to last line.

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    36,
 /**/
     35,
 /**/