The ornamental design for a corefrontseat, as shown and described.
FIG. 1 is a right front perspective view of a core front seat for a vehicle according to the present invention.
FIG. 2 is a left rear perspective view thereof.
FIG. 3 is a front view thereof.
FIG. 4 is a rear view thereof.
FIG. 5 is a right side view thereof.
FIG. 6 is a left side view thereof.
FIG. 7 is a top view thereof.
FIG. 8 is a right front perspective view of an alternative embodiment of the core front seat shown in FIG. 1; and,
FIG. 9 is a right side view of the core front seat shown in FIG. 8.
Any elements shown in broken lines form no part of the claimed invention, but are instead included to show environmental aspects thereof. The broken lines adjacent to the shaded portion form an unclaimed boundary of the design.