Add support for custom metadata to pre-fill and customize input fields in the Feedback Widget

We’re using the openFeedbackWidget programmatically with the setBoard property, which works great. However, it would be extremely useful to have additional metadata options to further tailor the widget experience based on context in our app.

Specifically, we’d like to:

• Pre-fill the title and description fields with dynamic content (e.g., feature name, issue summary).

• Customize placeholders for these inputs to guide users more effectively based on the feature or context.

This would allow us to create a more seamless and contextual feedback experience, especially when gathering feedback for specific features or flows within the app.