Update i18n properties

Author: seime

bundles/org.openhab.binding.unifi/src/main/resources/OH-INF/i18n/unifi.properties

@@ -48,6 +48,8 @@ thing-type.config.unifi.controller.port.label = Port
 thing-type.config.unifi.controller.port.description = Port of the UniFi Controller
 thing-type.config.unifi.controller.refresh.label = Refresh Interval
 thing-type.config.unifi.controller.refresh.description = The refresh interval in seconds to poll the UniFi controller
+thing-type.config.unifi.controller.timeoutSeconds.label = Connection timeout
+thing-type.config.unifi.controller.timeoutSeconds.description = Connection timeout in seconds for API calls to the UniFi Controller.
 thing-type.config.unifi.controller.unifios.label = UniFi OS
 thing-type.config.unifi.controller.unifios.description = If the UniFi Controller is running on UniFi OS.
 thing-type.config.unifi.controller.username.label = Username