Do not remove the spaces from file names

[TestPolygon]

Do not remove the spaces from file names. Neither from the rename pattern input (when you click "Save" button), nor from the result file name (if the art name contains the spaces).

[sakkamade]

I believe even if this feature will be implemented, it must hold a capacity to be configurable by user.

[sakkamade]

Do not remove the spaces from file names.

@leoding86, As far as I see this is implemented by now??? Is not configurable, though... Oh, well.

[sakkamade]

Likely it's happened here https://github.com/leoding86/pixiv-omina/commit/637844ee02fa3108902e72a9906213cc8dac34c9 https://github.com/leoding86/pixiv-omina/commit/517be68ed597b9cc2e05d8fdc297963b966b7156.