Improve multi card view

[f1sh1918]

Is your feature request related to a problem? Please describe.
When the user activates more than one card, it should be more intuitive to the user that it can be switched between cards

Here are some possible improvements
Describe the solution you'd like

• indicate that more cards are available (card carousel)
• show an information dialog once the user activates a second card (if one is already active)
• show information how to switch between cards
• add two buttons with "weiter" and "nicht mehr anzeigen"
• if the user clicks "Nicht mehr anzeigen" set a flag that this dialog won't show up again
• if the user clicks "ok" the dialog will show up again if another card will be activated

Design

We have an existing dialog we could reuse. Maybe this is good enough with a proper text @hauf-toni

[hauf-toni]

I would definitly recommend a permanently visible and at all times intuitive solution to switch between cards, eg this one:

[f1sh1918]

i could reduce the padding of the card detail view and the view fraction of the carousel. It would look like that @hauf-toni
Then i could rename this task to improve multi card view or sth similar

[hauf-toni]

@f1sh1918 Nice! I just have one small change to add: To show users that they can switch between cards navigation dots beneath the card would actually be more prominent and visible compared to the first version. Also, the QR Code should only become visible once the card is selected, no preview displayed. If we would want to clarify this feature we could also consider adding a subtle swipe animation on the first load.

[f1sh1918]

@f1sh1918 Nice! I just have one small change to add: To show users that they can switch between cards navigation dots beneath the card would actually be more prominent and visible compared to the first version. Also, the QR Code should only become visible once the card is selected, no preview displayed. If we would want to clarify this feature we could also consider adding a subtle swipe animation on the first load.

the issue is that the barcode belongs to the card and you switch both. Your solution pretends that only the id card is changing which is technically wrong @hauf-toni

[f1sh1918]

For me it would then make more sense to put it on top