fix(profiles-m-r): move vim modeline

Move vim syntax comment to the end of the file, separated by newline, as requested in #380.

apparmor.d/profiles-m-r/pam-tmpdir-helper

@@ -1,7 +1,6 @@
 # apparmor.d - Full set of apparmor profiles
 # Copyright (C) 2024 Alexandre Pujol <alexandre@pujol.io>
 # SPDX-License-Identifier: GPL-2.0-only
-# vim:syntax=apparmor
 
 abi <abi/3.0>,
 
@@ -23,4 +22,6 @@ profile pam-tmpdir-helper @{exec_path} {
   /dev/tty@{int} rw,
 
   include if exists <local/pam-tmpdir-helper>
-}
+}
+
+# vim:syntax=apparmor