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/netbeans.c b/src/netbeans.c
index 8339b95..d393bba 100644
--- a/src/netbeans.c
+++ b/src/netbeans.c
@@ -1843,7 +1843,7 @@
 	    out_flush_cursor(TRUE, FALSE);
 
 	    // Quit a hit-return or more prompt.
-	    if (State == HITRETURN || State == ASKMORE)
+	    if (State == MODE_HITRETURN || State == MODE_ASKMORE)
 	    {
 #ifdef FEAT_GUI_GTK
 		if (gui.in_use && gtk_main_level() > 0)
@@ -2229,7 +2229,7 @@
 	out_flush_cursor(TRUE, FALSE);
 
 	// Quit a hit-return or more prompt.
-	if (State == HITRETURN || State == ASKMORE)
+	if (State == MODE_HITRETURN || State == MODE_ASKMORE)
 	{
 #ifdef FEAT_GUI_GTK
 	    if (gui.in_use && gtk_main_level() > 0)
@@ -2323,7 +2323,7 @@
 	    strcpy(&keybuf[i], tok);
 	    vim_snprintf(cmdbuf, sizeof(cmdbuf),
 				 "<silent><%s> :nbkey %s<CR>", keybuf, keybuf);
-	    do_map(0, (char_u *)cmdbuf, NORMAL, FALSE);
+	    do_map(0, (char_u *)cmdbuf, MODE_NORMAL, FALSE);
 	}
 	tok = strtok(NULL, " ");
     }