Add ConfigFlow for here_travel_time (#69212)

* Add ConfigFlow for here_travel_time

* Use Selectors and Menu

* Use separate config flow steps for menus

* Move time options together

* Update homeassistant/components/here_travel_time/config_flow.py

Co-authored-by: Allen Porter <allen.porter@gmail.com>

* Blacken config_flow

* Initialize _config

* Only catch HERE errors

* Fix unknown error test

* Implement async_step_import

* Only catch errors for validate_api_key

* Split lat/lon

* Add additional test coverage

* Use TimeSelector in option flow

* Assert config entry data/option

Co-authored-by: Allen Porter <allen.porter@gmail.com>

homeassistant/generated/config_flows.py

@@ -143,6 +143,7 @@ FLOWS = {
         "hangouts",
         "harmony",
         "heos",
+        "here_travel_time",
         "hisense_aehw4a1",
         "hive",
         "hlk_sw16",