Shorten "Power-on behavior" name in matter to be consistent (#165490)

homeassistant/components/matter/strings.json

@@ -325,11 +325,11 @@
         }
       },
       "startup_on_off": {
-        "name": "Power-on behavior on startup",
+        "name": "Power-on behavior",
         "state": {
           "off": "[%key:common::state::off%]",
           "on": "[%key:common::state::on%]",
-          "previous": "Previous",
+          "previous": "Previous state",
           "toggle": "[%key:common::action::toggle%]"
         }
       },

tests/components/matter/test_select.py

@@ -86,15 +86,12 @@ async def test_attribute_select_entities(
     matter_node: MatterNode,
 ) -> None:
     """Test select entities are created for attribute based discovery schema(s)."""
-    entity_id = "select.mock_dimmable_light_power_on_behavior_on_startup"
+    entity_id = "select.mock_dimmable_light_power_on_behavior"
     state = hass.states.get(entity_id)
     assert state
     assert state.state == "previous"
     assert state.attributes["options"] == ["on", "off", "toggle", "previous"]
-    assert (
-        state.attributes["friendly_name"]
-        == "Mock Dimmable Light Power-on behavior on startup"
-    )
+    assert state.attributes["friendly_name"] == "Mock Dimmable Light Power-on behavior"
     set_node_attribute(matter_node, 1, 6, 16387, 1)
     await trigger_subscription_callback(hass, matter_client)
     state = hass.states.get(entity_id)