Check for compatible updates in plugin (#832)

plugin/src/Settings.lua

@@ -14,6 +14,8 @@ local defaultSettings = {
 	twoWaySync = false,
 	showNotifications = true,
 	syncReminder = true,
+	checkForUpdates = true,
+	checkForPrereleases = false,
 	autoConnectPlaytestServer = false,
 	confirmationBehavior = "Initial",
 	largeChangesConfirmationThreshold = 5,