[Task] 'vf-card' and 'vf-button' React components update to remove Nunjucks dependency

[bhushan-ebi]

Current Card and Button components are dependent on Nunjucks template rendering.
Remove this dependency to make them render using React code.

Acceptance Criteria

• Updated components render properly on the website

Definition of done

• Component code deployed

[bhushan-ebi]

PR Raised - 2401