patch 8.2.3972: error messages are spread out

Problem:    Error messages are spread out.
Solution:   Move the last errors from globals.h to errors.h.
diff --git a/src/menu.c b/src/menu.c
index 9ecba44..0583c10 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -959,7 +959,7 @@
 	    else if (*name != NUL)
 	    {
 		if (!silent)
-		    emsg(_(e_menuothermode));
+		    emsg(_(e_menu_only_exists_in_another_mode));
 		return FAIL;
 	    }
 
@@ -1133,7 +1133,7 @@
 		}
 		else if ((menu->modes & modes) == 0x0)
 		{
-		    emsg(_(e_menuothermode));
+		    emsg(_(e_menu_only_exists_in_another_mode));
 		    vim_free(path_name);
 		    return FAIL;
 		}