GUI: add “don’t care” button in choose dialogs

Choose dialogs can be annoying to select in some use cases (example: put to library order, triggers order for stack, etc). So user can clicks on “don’t care” button to make random/minimum choice. Computer (AI) uses same logic for own choices too.

Choose dialog types:
* feedback dialog (priority, yes/no, target selection);
* cards selection dialog (choose from exile, etc);
* color, amount, name and other choice dialogs from a list of options;

TODO:
* [ ] Need more research for more use cases and cards examples for diff dialog types;
* [ ] Implement random choice button for triggers as proof of concept;
* [ ] Implement other buttons;

Start by researching the existing choose dialog types and the trigger choice flow, including feedback, card selection, and list-based choices. Identify more use cases and card examples, then define the trigger random-choice proof of concept and the remaining button behavior; done means the proof of concept and subsequent dialog buttons are implemented.

Written by the indexing model from the issue text.