patch 8.2.2418: color not changed if ModeMsg highlight is set in InsertEnter

Problem:    Color not changed if ModeMsg highlight is set in InsertEnter
            autocmd event. (Paul Swanson)
Solution:   Call highlight_changed() after triggering InsertEnter.
            (closes #7751)
diff --git a/src/version.c b/src/version.c
index d9d8104..fa3ce6f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2418,
+/**/
     2417,
 /**/
     2416,