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/pkexec

@@ -2,7 +2,6 @@
 # Copyright (C) 2019-2022 Mikhail Morfikov
 # Copyright (C) 2022-2024 Alexandre Pujol <alexandre@pujol.io>
 # SPDX-License-Identifier: GPL-2.0-only
-# vim:syntax=apparmor
 
 abi <abi/3.0>,
 
@@ -64,3 +63,5 @@ deny @{user_share_dirs}/gvfs-metadata/* r,
 
   include if exists <local/pkexec>
 }
+
+# vim:syntax=apparmor