Don't show device connectivity balloons by default

src/SyncTrayzor/App.config

@@ -36,7 +36,7 @@
         <ShowTrayIconOnlyOnClose>false</ShowTrayIconOnlyOnClose>
         <MinimizeToTray>false</MinimizeToTray>
         <CloseToTray>true</CloseToTray>
-        <ShowDeviceConnectivityBalloons>true</ShowDeviceConnectivityBalloons>
+        <ShowDeviceConnectivityBalloons>false</ShowDeviceConnectivityBalloons>
         <ShowSynchronizedBalloonEvenIfNothingDownloaded>false</ShowSynchronizedBalloonEvenIfNothingDownloaded>
         <SyncthingAddress>localhost:8384</SyncthingAddress>
         <StartSyncthingAutomatically>true</StartSyncthingAutomatically>

src/SyncTrayzor/Services/Config/Configuration.cs

@@ -81,7 +81,7 @@ namespace SyncTrayzor.Services.Config
             this.MinimizeToTray = false;
             this.CloseToTray = true;
             this.ShowSynchronizedBalloonEvenIfNothingDownloaded = false;
-            this.ShowDeviceConnectivityBalloons = true;
+            this.ShowDeviceConnectivityBalloons = false;
             this.ShowDeviceOrFolderRejectedBalloons = true;
             this.SyncthingAddress = "localhost:8384";
             this.StartSyncthingAutomatically = true;