Update chat widget configuration

curl --location --request PUT 'https://snakk-backend-production.up.railway.app/api/chat/config/' \
--header 'X-API-Key: <api-key>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "chat_enabled": true,
    "primary_color": "#6366f1",
    "secondary_color": "#4f46e5",
    "text_color": "#ffffff",
    "position": "bottom-right",
    "welcome_message": "Hei! 👋 Hvordan kan jeg hjelpe?",
    "welcome_message_delay": 3000,
    "show_welcome_message": true,
    "quick_questions": [
        {
            "text": "Hva er åpningstidene?"
        },
        {
            "text": "Hvordan kontakter jeg support?"
        }
    ],
    "show_agent_name": true,
    "agent_display_name": "string",
    "agent_avatar_url": "string",
    "max_messages_per_session": 100,
    "max_sessions_per_hour": 10,
    "streaming_enabled": true,
    "allowed_domains": [
        "example.com",
        "*.mysite.no"
    ]
}'