Level
2

Let $m$ be a line in the complex plane defined by

$(1-i)z+(1+i)\overline{z} =4.$

Let $z_1=2+2i$ be a point in the complex plane.

If the reflection of $z_1$ in $m$ is $z_{2}$, then compute the value of

$\overline{z_{1}}(1+i)+z_{2}(1-i).$