Communication of playing a card with targets

[kenan-rhoton]

For #41.

This requires there be an E2E test in place, and that the feature works as expected. This is the final step in implementation of issue #41.

[Masclins]

This probably has more sense to be worked with after resolving #55

[Masclins]

...Now we have the problem of how to identify a card in the frontend's board with a card in the backend's board. This seems complicated because they are sorted differently, since we split them by owner on frontend.

[kenan-rhoton]

This might be the first actual case for an ID... 🤔

We should discuss options.

[Masclins]

Passing the index of the card (we can give it when filling the row) and the rownum is another option

[Masclins]

This is actually the Issue that @pernilsalat said would work this next two weeks.