patch 8.1.1743: 'hlsearch' and match highlighting in the wrong place

Problem:    'hlsearch' and match highlighting in the wrong place.
Solution:   Move highlighting from inside screen functions to highlight.c.
diff --git a/src/version.c b/src/version.c
index c674702..1253846 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1743,
+/**/
     1742,
 /**/
     1741,