Configuring/Variables xray Description Error

[poetex]

The xray description currently states:

if enabled, floating windows will ignore tiled windows in their blur. Only available if blur_new_optimizations is true. Will reduce overhead on floating blur significantly.

The variable blur_new_optimizations should actually read new_optimizations, as blur_new_optimizations does not exist as a blur variable.

Consider changing Line 139 to:

if enabled, floating windows will ignore tiled windows in their blur. Only available if new_optimizations is true. Will reduce overhead on floating blur significantly.

[fufexan]

PRs welcome.