lovelace-state-switch: state-switch: box-shadow not displayed

Since some update the outer border’s shadow is not displayed with a default theme:

title: state-switch-5
path: test-state-switch-5
cards:

  - type: entities
    entities:
      - input_boolean.test_boolean

  - type: custom:state-switch
    entity: input_boolean.test_boolean
    states:
      "on":
        type: entities
        entities:
          - entity: sun.sun
          - entity: binary_sensor.updater
          - entity: zone.home
      "off":
        type: entities
        entities:
          - entity: zone.home
          - entity: sun.sun
          - entity: binary_sensor.updater