fixed: bitrate slider disabled when sunshine server does not support dynamic bitrate

VoidLink/ViewControllers/SettingsViewController.m

@@ -329,6 +329,7 @@ BOOL isCustomResolution(int resolutionSelected) {
                 [self widget:self.bitrateSlider setEnabled:responseCode == 200];
             });
         }
+        else dispatch_async(dispatch_get_main_queue(), ^{[self widget:self.bitrateSlider setEnabled:true];});
     });
  }