Further increase outline pixels to 2048

Follow-up to https://github.com/diasurgical/devilutionX/pull/7157

Source/engine/render/clx_render.cpp

@@ -231,7 +231,7 @@ void DoRenderBackwards(
 	}
 }
 
-constexpr size_t MaxOutlinePixels = 1536;
+constexpr size_t MaxOutlinePixels = 2048;
 constexpr size_t MaxOutlineSpriteWidth = 253;
 using OutlinePixels = StaticVector<PointOf<uint8_t>, MaxOutlinePixels>;
 using OutlineRowSolidRuns = StaticVector<std::pair<uint8_t, uint8_t>, MaxOutlineSpriteWidth / 2 + 1>;