Fix SaveCurrentScreenshot

This fixes SaveCurrentScreenshot so it correctly saves the screenshot into the screenshot folder, it's no longer a stub

I was going to add the capture button so all games worked but tbh I only care for spongebob

games tested
Pokemon Z-A: https://files.raychu.xyz/u/1FaUGV.png
Pokemon Violet: https://files.raychu.xyz/u/6swfVS.png
Pokemon Violet: https://files.raychu.xyz/u/JaBBX2.png
Spongebob The Cosmic Shake: https://files.raychu.xyz/u/8z5X2e.png

src/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ISelfController.cs

@@ -416,7 +416,7 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
                 return ResultCode.InvalidParameters;
             }
 
-            Logger.Stub?.PrintStub(LogClass.ServiceAm, new { albumReportOption });
+            context.Device.UIHandler.TakeScreenshot();
 
             return ResultCode.Success;
         }