Fix config flow handler naming to resolve "Invalid handler specified" error

[Copilot]

Home Assistant's config flow loader expects the handler class to be named ConfigFlowHandler. The integration used HomebridgeUpdateFlowHandler, causing configuration failures.

Changes

• Renamed config flow handler class: HomebridgeUpdateFlowHandler → ConfigFlowHandler
• Removed deprecated CONNECTION_CLASS attribute
• Version bump: 0.3.0 → 0.3.1

# Before
class HomebridgeUpdateFlowHandler(config_entries.ConfigFlow):
    VERSION = 1
    DOMAIN = DOMAIN
    CONNECTION_CLASS = config_entries.CONN_CLASS_LOCAL_POLL

# After
class ConfigFlowHandler(config_entries.ConfigFlow):
    VERSION = 1
    DOMAIN = DOMAIN

The integration can now be configured through the Home Assistant UI without errors.

Original prompt

tengo el siguiente mensaje al intentar configurar la integracion

No se pudo cargar el flujo de configuración: {"message":"Invalid handler specified"}

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