Don't suspend Home Assistant OS on closed lids (#1093) (#1100)

Old Laptops are a popular choice to run Home Assistant: They have low
power consumption, are relatively fast and cheap to come by. However,
closing their lid by default puts a Linux system into suspend. This is
not what the typical user of Home Assistant OS wants. Ignore lid
activity in any state by default.

buildroot-external/rootfs-overlay/etc/systemd/logind.conf

@@ -0,0 +1,38 @@
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU Lesser General Public License as published by
+#  the Free Software Foundation; either version 2.1 of the License, or
+#  (at your option) any later version.
+#
+# Entries in this file show the compile time defaults.
+# You can change settings by editing this file.
+# Defaults can be restored by simply deleting this file.
+#
+# See logind.conf(5) for details.
+
+[Login]
+#NAutoVTs=6
+#ReserveVT=6
+#KillUserProcesses=yes
+#KillOnlyUsers=
+#KillExcludeUsers=root
+#InhibitDelayMaxSec=5
+#HandlePowerKey=poweroff
+#HandleSuspendKey=suspend
+#HandleHibernateKey=hibernate
+HandleLidSwitch=ignore
+HandleLidSwitchExternalPower=ignore
+HandleLidSwitchDocked=ignore
+#PowerKeyIgnoreInhibited=no
+#SuspendKeyIgnoreInhibited=no
+#HibernateKeyIgnoreInhibited=no
+#LidSwitchIgnoreInhibited=yes
+#HoldoffTimeoutSec=30s
+#IdleAction=ignore
+#IdleActionSec=30min
+#RuntimeDirectorySize=10%
+#RuntimeDirectoryInodes=400k
+#RemoveIPC=yes
+#InhibitorsMax=8192
+#SessionsMax=8192