Refactor code structure for improved readability and maintainability

scripts/house_alert.yaml

@@ -2,19 +2,19 @@ alias: House alert
 sequence:
   - action: media_player.turn_on
     data:
-      entity_id: media_player.master_bedroom_clock
+      entity_id: media_player.bedroom_hub
   - action: media_player.volume_set
     data:
-      entity_id: media_player.master_bedroom_clock
+      entity_id: media_player.bedroom_hub
       volume_level: 0.5
   - action: media_player.play_media
     data:
-      entity_id: media_player.master_bedroom_clock
+      entity_id: media_player.bedroom_hub
       media_content_id: http://192.168.1.11:8123/local/audio/alarms/Alarm_Clock.mp3
       media_content_type: music
   - delay: "00:00:10"
   # Wait for it to stop playing (5 second audio clip)
-  - wait_template: "{{ is_state('media_player.master_bedroom_clock','idle') }}"
+  - wait_template: "{{ is_state('media_player.bedroom_hub','idle') }}"
     timeout: "00:00:06"
     continue_on_timeout: "true"
   # Send an audio alert
@@ -22,15 +22,15 @@ sequence:
     target:
       entity_id: tts.google_translate_en_com
     data:
-      media_player_entity_id: media_player.master_bedroom_clock
+      media_player_entity_id: media_player.bedroom_hub
       message: >-
         {{ (expand('binary_sensor.exterior_doors') | selectattr('state', 'eq', 'off')) | map(attribute='name') | list }}
   - delay: "00:00:02"
   # Wait for it to stop playing (2 minute timeout)
-  - wait_template: "{{ is_state('media_player.master_bedroom_clock','idle') }}"
+  - wait_template: "{{ is_state('media_player.bedroom_hub','idle') }}"
     timeout: "00:02:00"
     continue_on_timeout: "true"
   # Turn off the media players
   - action: media_player.turn_off
     data:
-      entity_id: media_player.master_bedroom_clock
+      entity_id: media_player.bedroom_hub