Update video_looper.py

[DanBaigo]

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[tofuSCHNITZEL]

Maybe you can find a way to dynamically split in two lines instead of forcing two lines for everybody. Or maybe an additional line option - and if only one line is specified its centered

[TehTick]

could you add another command to go to previous videos like k will skip to the next?

[tofuSCHNITZEL]

this is already implemented here: https://github.com/adafruit/pi_video_looper/tree/feat_prev And now officially released https://github.com/adafruit/pi_video_looper/releases/tag/v1.0.12