This MR mostly reverts the relevant commit from !1405 (4c639ee9) that spawned this issue. I'm not sure if the alignOutlineToPixels() check can be easily moved within KisPressureSharpnessOption::apply, as originally requested in that MR, without causing behavioral changes in dabs, but I might not understand the code enough.
Make sure sharpness brushes don't change in dab behavior at all regardless if "Align brush outline preview to pixel grid" is checked or not. The option should only affect visuals of the preview.
Make sure the dab behavior conforms to the dab behavior of 5.0.
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