The ornamental design for a yogachair, as shown and described.
FIG. 1 is a perspective view of a yoga chair showing my new design, comprising of a frame portion and a cover portion;
FIG. 2 is a front view thereof, the rear view being a mirror image of the front view;
FIG. 3 is a left side view thereof, the right side view being a mirror image of the left side view;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a perspective view of the frame portion thereof shown separately to show aspects of the design that may not be apparent in the other views;
FIG. 7 is a bottom view of the frame portion thereof;
FIG. 8 is a perspective view of the ball portion thereof shown separately to show aspects of the design that may not be apparent in the other views; and,
FIG. 9 is a perspective view of the cover portion thereof shown separately to show aspects of the design that may not be apparent in the other views.