This improves the results from the graph calculations.
Everything is documented in the comments.
The genlist of focus 6 is placed in a way that the button
at the top is not in reach, before we only had lvl1 and lvl2
(as described in the code comment), thus the button was only
reachable via right not via top. lvl3 makes it accessable
via top AND right.
fix T7098
Differential Revision: https://phab.enlightenment.org/D6491