Colours for cards

[Siruela2005]

It would be great to have the ability to assign different colors to cards in the Kanban board. This could work in several ways:

1. Dynamic Colors: Cards could automatically change their color when moved to a different column.

2. Manual Selection: Users could manually assign colors to cards, allowing them to mark, for example:

   • High-priority tasks in red.
   • Low-priority tasks in green.
   • Tasks related to specific work types, such as:
     - Art: Purple.
     - Code: Blue.
     - And more, based on user needs.

This feature would improve visual organization and make it easier to distinguish between priorities or categories at a glance. It would be a fantastic addition to the plugin! 😊