The ornamental design for a tabletwall mount, as shown and described.
FIG. 1 is a first perspective view of a tablet wall mount showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back 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;
FIG. 9 is a perspective view of another state of the tablet wall mount thereof; and,
FIG. 10 is a perspective view of further another state of the tablet wall mount thereof.
The broken lines shown in the drawings depict portions of the tablet wall mount in which the design is embodied that form no part of the claimed design.