[Issue]: [PCE.emu] The resolution should not be 239 lines

[MinecraftMario27]

Describe the bug

@Rakashazi can you please change from 239 to 240 lines on PCE.emu in Visible Lines options in the next commit. The TurboGrafx-16 / PC Engine actually output 240 pixels. Emulators like Beetle PCE, Beetle PCE Fast, Beetle SuperGrafx on RetroArch, It emulates as 240 lines instead of 239 as default

Please look down / last scanline at the image:
Screenshot from Super Mario Bros. TurboGrafx-16 / PC Engine port

First image: 239 lines

Second image: 240 lines

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Expected behavior

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