Collapse and expand cards in a stack

[bpcurse]

In a stack that contains lots of cards a collapse / expand command might be useful.

Example:

After clicking on a collapsed card, either only the single card could be expanded or the size of all cards could be restored and the view scrolls to the selected card.

[juliusknorr]

I get the point why this might be needed, but adding another button for that doesn't seem like the best solution. I think we should focus on proper filtering so users can decide to just see the cards they need to see. Any opinions @nextcloud/deck ?

[NebriBlackwing]

@juliushaertl I think a filter field at the same level or just underneath the stack title would be ideal.

[juliusknorr]

@Nebri Checkout #414 for the filters

@bpcurse I'll close this because filtering will be a much more universal way than just adding a collapse card mode.