[shelly] Improve smoke sensor wake-up period handling (#18309)

* [shelly] increase smoke sensor regular update period by half an hour (#17767)

Signed-off-by: Matthias Maier <code@telebim.de>

bundles/org.openhab.binding.shelly/src/main/java/org/openhab/binding/shelly/internal/handler/ShellyBaseHandler.java

@@ -356,7 +356,11 @@ public abstract class ShellyBaseHandler extends BaseThingHandler
             tmpPrf.updatePeriod = "m".equalsIgnoreCase(getString(tmpPrf.settings.sleepMode.unit))
                     ? tmpPrf.settings.sleepMode.period * 60 // minutes
                     : tmpPrf.settings.sleepMode.period * 3600; // hours
-            tmpPrf.updatePeriod += 60; // give 1min extra
+            if (tmpPrf.isSmoke) {
+                tmpPrf.updatePeriod += 1800; // for smoke sensor give 30min extra
+            } else {
+                tmpPrf.updatePeriod += 60; // give 1min extra
+            }
         } else if (tmpPrf.settings.coiot != null && tmpPrf.settings.coiot.updatePeriod != null) {
             // Derive from CoAP update interval, usually 2*15+10s=40sec -> 70sec
             tmpPrf.updatePeriod = Math.max(UPDATE_SETTINGS_INTERVAL_SECONDS,