Add caching feature for links and update the example #64
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…e of we use previewBuilder with PreviewData returned with null values
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Add caching f✨ What's New:
✅ Added caching feature:
New enableCaching boolean flag to toggle caching.
New cachingDuration parameter to control how long the data is cached.
🔁 Improved didUpdateWidget logic:
Enhanced handling of prop updates to avoid redundant fetches.
More efficient lifecycle updates when preview data changes dynamically.
🧪 Example project updated:
Now includes usage of the new enableCaching and cachingDuration parameters.
Serves as a practical guide for developers to adopt the feature quickly.
⚙️ Why This Matters
Improves performance when previewing the same links multiple times.
Reduces network calls, making the widget more efficient for chat or feed-based apps.
Makes the widget behavior more predictable in dynamic rebuild scenarios.