Easy Thumb Latch for Gridfinity Base Storage Box

This remix of the Gridfinity Storage Box Latch has been deepened to make opening easier. The enlarged finger slot permits most of one's fingertip to be inserted so as to enhance leverage and make opening more ergonomic. Please note that this does result in the latch protruding forward from the external walls of the box by about 6mm at most, which can impact its horizontal packing efficiency. Given that these boxes are intended to be stacked vertically, this should not cause any issues.