Align thread pool sizes for demo app with sizes set for distribution (#1784)

* Align thread pool sizes for demo app with sizes set for distribution

Discussed in openhab/openhab-addons#19125

Signed-off-by: Laurent Garnier <lg.hc@free.fr>

Author: lolodomo

launch/app/runtime/services.cfg

@@ -12,11 +12,11 @@ basicui:inlineSvg=false
 # cors:enable=true
 
 # Configuration of thread pool sizes
-threadpool:thingHandler=3
-threadpool:discovery=3
-threadpool:safeCall=3
+threadpool:discovery=5
+threadpool:safeCall=10
+threadpool:thingHandler=15
 
-# Start level definition
+# Start level definitions
 startlevel:20=dsl:items,managed:item,dsl:things,managed:thing,managed:itemchannellink,dsl:persist,managed:metadata
 startlevel:30=persistence:services,automation:scriptEngineFactories
 startlevel:40=dsl:rules,managed:rule,rules:refresh,rules:dslprovider