sxmo: fix MPRIS detection so that any active player will block suspend

pkgs/additional/sxmo-utils/0006-block-suspend-any-mpris.patch

@@ -0,0 +1,13 @@
+diff --git a/configs/default_hooks/sxmo_hook_block_suspend.sh b/configs/default_hooks/sxmo_hook_block_suspend.sh
+index f394575..873b7b2 100755
+--- a/configs/default_hooks/sxmo_hook_block_suspend.sh
++++ b/configs/default_hooks/sxmo_hook_block_suspend.sh
+@@ -68,7 +68,7 @@ playing_mpc() {
+ }
+ 
+ playing_mpris() {
+-	command -v playerctl && [ "$(playerctl status)" = "Playing" ]
++	command -v playerctl && playerctl --all-players status | grep -q "Playing"
+ }
+ 
+ photos_processing() {

pkgs/additional/sxmo-utils/default.nix

@@ -83,6 +83,7 @@ stdenv.mkDerivation rec {
     ./0004-no-busybox.patch
     # wanted to fix/silence some non-fatal errors
     ./0005-system-audio.patch
+    ./0006-block-suspend-any-mpris.patch
 
     # personal (but upstreamable) preferences:
     ./0104-full-auto-rotate.patch