Implement CoderabbitAI suggestion

Author: bouwew

plugwise/legacy/smile.py

@@ -250,12 +250,25 @@ async def set_switch_state(
             appliance = self._appliances.find(f'appliance[@id="{appl_id}"]')
             appl_name = appliance.find("name").text
             appl_type = appliance.find("type").text
-            data = (
-                f'<appliances><appliance id="{appl_id}"><name><![CDATA[{appl_name}]]></name>'
-                f"<description><![CDATA[]]></description><type><![CDATA[{appl_type}]]></type>"
-                f"<{switch.actuator}><{switch.func_type}><lock>{state}</lock></{switch.func_type}></{switch.actuator}>"
-                "</appliance></appliances>"
-            )
+-            data = (
+-                f'<appliances><appliance id="{appl_id}"><name><![CDATA[{appl_name}]]></name>'
+-                f"<description><![CDATA[]]></description><type><![CDATA[{appl_type}]]></type>"
+-                f"<{switch.actuator}><{switch.func_type}><lock>{state}</lock></{switch.func_type}></{switch.actuator}>"
+-                "</appliance></appliances>"
+-            )
++            data = f'''
++                <appliances>
++                    <appliance id="{appl_id}">
++                        <name><![CDATA[{appl_name}]]></name>
++                        <description><![CDATA[]]></description>
++                        <type><![CDATA[{appl_type}]]></type>
++                        <{switch.actuator}>
++                            <{switch.func_type}>
++                                <lock>{state}</lock>
++                            </{switch.func_type}>
++                        </{switch.actuator}>
++                    </appliance>
++                </appliances>'''.strip()
             await self.call_request(APPLIANCES, method="post", data=data)
             return