[ADD] awesome_owl: implement Counter and Card sub-components

[amsli]

PROBLEM - The initial frontend playground is a blank workspace lacking modular UI elements and reusable structures.

GOAL - Build the foundational building blocks of the Web Framework tutorial using Owl components.

SOLUTION -

• Created a reusable 'Counter' component utilizing the 'useState' hook for reactive UI rendering.
• Created a configurable 'Card' component that accepts 'title' and 'content' props from parent layouts.
• Integrated child components into the main Playground container using clean Bootstrap card structures.

task-1302

[robodoo]