[WEB-3917] - Link whole card

Description

Card Component Improvements:

src/components/Homepage/BodySection/Card/FeatureCard.tsx: Updated the FeatureCard component to make the entire card clickable by adding a navigate function and conditional rendering for image and links.
src/components/ProductPage/BodySection/Card/FeatureCard.tsx: Similar updates to make the card clickable and conditionally render image and links.
src/components/ProductPage/BodySection/Card/QuickstartCard.tsx: Made the QuickstartCard component clickable and added conditional rendering for image and links.
src/components/ProductPage/BodySection/Card/TutorialCard.tsx: Updated the TutorialCard component to make it clickable and conditionally render image and links.

Image Handling:

src/components/Image.tsx: Modified the Image component to return null instead of undefined when no image is provided, ensuring better handling of missing images. [1] [2]

Import Cleanup:

Removed withPrefix import from various pages (src/pages/index.tsx, src/pages/products/channels.tsx, src/pages/products/chat.tsx, src/pages/products/livesync.tsx) as it was not being used. [1] [2] [3] [4]

Code Refactoring:

src/components/ProductPage/BodySection/BodySection.tsx: Simplified imports by aggregating card component imports into a single line.
src/components/ProductPage/BodySection/Card/index.ts: Added exports for various card components to facilitate simpler imports elsewhere.

These changes collectively enhance the maintainability and usability of the codebase, particularly in the rendering of card components and handling of images.

A PR description indicating the purpose of the PR.

WEB-3917

Review

Instructions on how to review the PR.

The pages that have cards are https://ably-docs-web-3917-rspysishyym.herokuapp.com/docs/ https://ably-docs-web-3917-rspysishyym.herokuapp.com/docs/products/channels https://ably-docs-web-3917-rspysishyym.herokuapp.com/docs/products/spaces https://ably-docs-web-3917-rspysishyym.herokuapp.com/docs/products/livesync https://ably-docs-web-3917-rspysishyym.herokuapp.com/docs/products/chat https://ably-docs-web-3917-rspysishyym.herokuapp.com/docs/products/asset-tracking

ably / docs

[WEB-3917] - Link whole card #2253