Emit the message BleRadioEnableToggle to DisplayApp only if the enable state of the radio has actually changed. (#2037)

This fixes an issue where the BLE connected logo would disappear when opening and closing the BLE setting (without changing it) while InfiniTime was already connected to a companion app.

Co-authored-by: JustScott <development@justscott.me>

src/displayapp/screens/settings/SettingBluetooth.h

@@ -20,6 +20,7 @@ namespace Pinetime {
 
       private:
         DisplayApp* app;
+        Pinetime::Controllers::Settings& settings;
         CheckboxList checkboxList;
       };
     }