Gen1/2 INT: 20 slots => 4 wide x 5 high
Gen7lgpe: 25 slots => 5x5
otherwise: 6x5
(maintain 5 rows)
Database(s): 6x11
Could probably wrap the initialization logic (grabbing savefile, etc)
but works for now
This is all in prep for box sprite resizing (56x68 as evident by lgpe
sprites); figured I'd add some display flexibility to handle prior games
with non-30/box layouts.
shave off a couple pixels for popup box view to make the edges of the
box directly at the edge (-2 bot, -1 right side)
