In Spider, cards that can't be moved are now shown as disabled using the
helpers in LibCards. This makes it much easier to see what can be moved
and to where, overall improving the game significantly!
This class had slightly confusing semantics and the added weirdness
doesn't seem worth it just so we can say "." instead of "->" when
iterating over a vector of NNRPs.
This patch replaces NonnullRefPtrVector<T> with Vector<NNRP<T>>.
As part of this, made a const overload for `Card::rect()`. We need the
non-const one too as it's used for modifying the position of a card
that's being dragged. I plan on changing that soon but we'll see.
Spider was only updating the new bounding box area after drawing cards
from the deck - leaving behind a sliver of the old deck.
This was a regression, as the game previously used the old bounding
box, introduced by GH-11153.
This matches basically all other Spider implementations I've played,
and makes playing much easier :)
I have left click-to-reveal in place, but mostly incase there is a
condition I've forgotten about.
Scoring is designed to mimic Microsoft's implementation - starting at
500, decreasing by 1 every move, and increasing by 100 for every full
stack.
Fixes GH-5319.
