[Nintendo Switch] Image resample for low resolution novels

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**Is your feature request related to a problem? Please describe.**
Not really a problem, most novels have a 640x480 resolution, on Switch they look really pixelated.

**Describe the solution you'd like**
Maybe it's possible to apply a image filtering or resampling to make the novels look a little bit better?

**Describe alternatives you've considered**
I was able to resize all "background" and "foreground" pictures to 1280x720 and it looks better, but that would have to be applied per novel.