fix(abstractions, tunables): move vim modeline

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

apparmor.d/abstractions/disks-read

@@ -2,7 +2,6 @@
 # Copyright (C) 2019-2021 Mikhail Morfikov
 # Copyright (C) 2022-2024 Alexandre Pujol <alexandre@pujol.io>
 # SPDX-License-Identifier: GPL-2.0-only
-# vim:syntax=apparmor
 
   # The /sys/ entries probably should be tightened
 
@@ -96,3 +95,5 @@
   @{run}/udev/data/+usb:*      r,     # for disk over usb hub
 
   include if exists <abstractions/disks-read.d>
+
+# vim:syntax=apparmor