Update intent response (#83858)

* Add language to conversation and intent response

* Move language to intent response instead of speech

* Extend intent response for voice MVP

* Add tests for error conditions in conversation/process

* Move intent response type data into "data" field

* Move intent response error message back to speech

* Remove "success" from intent response

* Add id to target in intent response

* target defaults to None

* Update homeassistant/helpers/intent.py

* Fix test

* Return conversation_id and multiple targets

* Clean up git mess

* Fix linting errors

* Fix more async_handle signatures

* Separate conversation_id and IntentResponse

* Add unknown error code

* Add ConversationResult

* Don't set domain on single entity

* Language is required for intent response

* Add partial_action_done

* Default language in almond agent

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

tests/components/intent/test_init.py

@@ -54,7 +54,7 @@ async def test_http_handle_intent(hass, hass_client, hass_admin_user):
         },
         "language": hass.config.language,
         "response_type": "action_done",
-        "data": {"target": None},
+        "data": {"targets": []},
     }