Improve clickability feedback for resource cards

### Problem:
Currently, the resource cards on the main dashboard (e.g., "Fantastic CRUD UI," "Advanced Search") provide minimal visual feedback to indicate they are interactive and clickable. The only current indicator is a cursor change to a pointer on hover. This lacks sufficient affordance, which can lead to a poor user experience and make the navigation feel less intuitive.

### Solution:
Enhanced the visual feedback for these interactive cards to make their tappable/clickable state more obvious. This was achieved by implementing a subtle but clear visual transformation on hover/focus.

### Changes Made:

- Added a slight scale transform (e.g., scale(1.02)) on hover to give a "lifting" effect.
- Applied a subtle background color or shadow change on hover to further distinguish the card from the static background.
- Ensured focus states are styled for accessibility when navigating via keyboard.

### Result:
The cards now provide a clear and modern visual cue that they are interactive elements, significantly improving the perceived usability and user confidence.

### Screenshot:

No file or test is named in the issue. Start by locating the main dashboard resource-card markup and its existing hover styles, then verify the scale, background or shadow, and keyboard-focus feedback in the dashboard; done means the cards visibly communicate interactivity without reducing accessible focus visibility.

Written by the indexing model from the issue text.