Find the value of the following expression:
$$\frac{\tan^{3} 45^{\circ}+4 \cos^{3} 60^{\circ}}{2 \cosec^{2} 45^{\circ} - 3 \sec ^{2} 30^{\circ} + \sin 30^{\circ}}$$

A

$$1+\sqrt{2}$$

B

$$\frac{4}{3}$$

C

$$\frac{3}{4}$$

D

3