Wireless Charger

FIG. 1 is a top, front, and left side perspective view of a wireless charger, showing my new design; FIG. 2 is a bottom, rear and right side perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a rear view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top view thereof; FIG. 8 is a bottom view thereof; and, FIG. 9 is an exploded perspective view thereof. The broken lines in the drawings depict portions of the wireless charger that form no part of the claimed design.