[VISUAL] BlurFilterY uses width instead of height

[WhiteRedDragons]

Describe the bug

Line88 of BlurFilterY.cpp : The Shaders gets the width of the Framebuffer for the epsilon used for blurring the image.
The implications for this should be obvious, it should be getting the height instead since its literally for the .y dimensions of the framebuffer.

Expected behavior

Blur has correct vertical scale

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Additional context

This is not an issue on the dx80 shaders