We currently render the card within the dialog, whose width depends on the user's viewport.
This would result in cards of different dimensions (and corresponding differences in how the data is presented: image size, text size, ...) depending on the device that ended up sharing them.
The card should always be rendered the exact same, regardless of the device.
Acceptance criteria
- downloaded/shared cards are 288px wide (and 512/288px high depending on whether they have an image or not, respectively)
- cards are displayed exactly the same as they are downloaded/shared
