Feature/global update trigger automatically (#593)

* Move "addCategoriesToUpdateQueue" to "Updater"

* Automatically trigger the global update

server/src/test/resources/server-reference.conf

@@ -15,6 +15,8 @@ server.maxParallelUpdateRequests = 10
 server.excludeUnreadChapters = true
 server.excludeNotStarted = true
 server.excludeCompleted = true
+server.automaticallyTriggerGlobalUpdate = false
+server.globalUpdateInterval = 12
 
 # misc
 server.debugLogsEnabled = true