Revert "spotify: remove socket cleaning"

This reverts commit 2e4e2d311c. Problem
is still here.

bin/spotify-clean

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# Kill all spotify streams, except the most recent one.
+
+pactl list short clients \
+    | awk '($3 == "spotify") {print $1}' \
+    | head -n-1 \
+    | xargs -rn1 pacmd kill-client

dotfiles/systemd/spotify-clean.service

@@ -0,0 +1,8 @@
+[Unit]
+Description=Clean spotify extra PulseAudio streams
+After=sound.target
+
+[Service]
+ExecStart=%h/.config/i3/bin/spotify-clean
+Type=oneshot
+RemainAfterExit=false

dotfiles/systemd/spotify-clean.timer

@@ -0,0 +1,7 @@
+[Unit]
+Description=Timer for cleaning spotify extra PA streams
+After=pulseaudio.socket
+
+[Timer]
+OnUnitActiveSec=1h
+OnStartupSec=1h

dotfiles/systemd/xsession.target

@@ -8,6 +8,7 @@ Wants=picom.service
 Wants=pipewire-pulse.socket
 Wants=policykit-agent.service
 Wants=redshift.service
+Wants=spotify-clean.timer
 Wants=ssh-agent.service
 Wants=weather.timer
 Wants=wireplumber.service