ncurses

Vec2 is currently made of 2 usize. This means 16 bytes on x86_64, which is crazy.
A pair of u16 would probaby be enough (this puts a limit of 65k, or 32k if we used i16, which sounds enough). Or even u32/i32 would already halve the size.

The main issue is conversion with other types. We'll need to see when/how values are converted.

Describe the bug/Expected behavior
The TUI window takes less than half of vertical space, losing information. For example, on the Memory tab, only first six banks are visible, plus the header of bank 7 (and there's apparently no way to scroll down).
The window also doesn't take the full horizontal space; in this case the text is not lost but spills into frames and wraps around onto the le