Re-enabled external log interval flushing

Author: Burnt-o

HCMExternal/App.xaml.cs

@@ -30,7 +30,8 @@ public App()
 #if HCM_DEBUG
                 .MinimumLevel.Verbose().WriteTo.Debug()
 #endif
-                .MinimumLevel.Verbose().WriteTo.File($"HCMExternal_Logging_{timestamp}.txt")
+                .MinimumLevel.Verbose().WriteTo.File($"HCMExternal_Logging_{timestamp}.txt",
+                flushToDiskInterval: TimeSpan.FromSeconds(3))
                 .CreateLogger();
             Log.Information("Logging started");