patch 8.2.4911: the mode #defines are not clearly named

Problem:    The mode #defines are not clearly named.
Solution:   Prepend MODE_.  Renumber them to put the mapped modes first.
diff --git a/src/macros.h b/src/macros.h
index 4cec6c1..53733c7 100644
--- a/src/macros.h
+++ b/src/macros.h
@@ -216,7 +216,7 @@
 
 #ifdef FEAT_RIGHTLEFT
     // Whether to draw the vertical bar on the right side of the cell.
-# define CURSOR_BAR_RIGHT (curwin->w_p_rl && (!(State & CMDLINE) || cmdmsg_rl))
+# define CURSOR_BAR_RIGHT (curwin->w_p_rl && (!(State & MODE_CMDLINE) || cmdmsg_rl))
 #endif
 
 /*