If the tangents at the points $P$ and $Q$ on the circle $x^{2} + y^{2} - 2x + y = 5$ meet at the point $R\left(\frac{9}{4}, 2\right)$, then the area of the triangle $PQR$ is\\
(1) $\frac{5}{4}$\\
(2) $\frac{13}{8}$\\
(3) $\frac{5}{8}$\\
(4) $\frac{13}{4}$