Cards refactoring

[oveddan]

• Moved matrixEdges to its own state - calculating that based on window size, and using that for useEffect.
• getCardsInMatrixToShow now just take IMatrixEdges as an argument (instead of everything it needs to calculate that)
• Moved CardsMatrix code to its own file
• Moved IMatrixEdges calculation into DraggableCards - and have its calculation simplified by just passing it a windowSizeInCards, which is also memoized based on window size.
• Made Vector immutable as to avoid some confusion and possible unexpected behavior with react #51
• Made Vector implement an array of numbers - so that we don't need to typecheck inside the functions.

[oveddan]

There is a bug - after clicking a filter you cannot click through to a details page.

[oveddan]

There is a bug - after clicking a filter you cannot click through to a details page.

Issue has been fixed.