music: Add systemd --user operations

roles/music/tasks/bitvis.yaml

@@ -54,6 +54,18 @@
     owner: root
     group: root
     mode: 0644
-  notify: restart bitvis
+  notify:
+    - restart filter-chain
+    - restart bitvis
+
+- name: Enable filter-chain
+  become: true
+  become_user: "{{ music_audio_user }}"
+  become_method: machinectl
+  ansible.builtin.systemd:
+    name: filter-chain
+    state: started
+    enabled: true
+    scope: user
 
 - meta: flush_handlers