patch 8.0.1821: cursor in terminal window moves when pressing CTRL-W

Problem:    Cursor in terminal window moves when pressing CTRL-W. (Dominique
            Pelle)
Solution:   Do not more the cursor or redraw when not in Terminal-Normal mode.
            (closes #2904)

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1821,
 /**/
     1820,
 /**/