Create a Custom Widget - Card with Shadow

[saty-a]

Develop a card widget that supports customizable shadow effects. The card should be able to display images, text, and buttons.

Acceptance Criteria:
The card should have properties for shadow color, offset, and blur radius.
Provide examples of the card in different styles (e.g., with images, text only).
Ensure the widget is tested for performance.

[AwadhootK]

@saty-a Please assign me this issue!